# kmno4 equivalent weight

Answer is 123.01g/equivalent This is a redox reaction , so in order to determine the equivalent weight in this type or reactions, we have to follow this equations: where; O.A is an oxidizing agent and R.A is a reducing agent. If hydrogen acts as a reducing or oxidizing agent, then either way $\pu{1 mol}$ of hydrogen atoms liberates or accepts $\pu{1 mol}$ of electrons: $$4 years ago. The equivalent weight of KMnO4 when it is converted into K2MnO4 is (a) M (b)… 1. Lv 4. i know how to find equivalant weight of acids & base... but i want to know how to find equivalant weight of oxidizing & reducding agents... like KMNO4 & Sodium Hydrosulphite As Mn7+ in KMnO4 changes to Mn2+ in acidic medium; it’s equivalent weight becomes M/5 (where M is molar mass of KMnO4). Continuous exposure to 0.5 mg KMnO4 or exposure to 1 or 2 mg KMnO4/L on alternate days did not cause a significant incr in manganese in axial muscle or liver tissue. Would Mike Pence become President if Trump was impeached and removed from office? Use MathJax to format equations. Angular momentum of a purely rotating body about any axis. The equivalent weight of KMnO4 when it is converted into K2MnO4 is (a) M (b) M/3 (c) M/5 (d) M/7 2 How long will the footprints on the moon last? 0 1. Quantum harmonic oscillator, zero-point energy, and the quantum number n. Why am I seeing unicast packets from a machine on another VLAN? Yes, that is right. Expert Answer . 20 ml of a N solution of KMnO4 just reacts with 20 ml of a solution of oxalic acid. Potassium permanganate is an inorganic compound with the chemical formula KMnO 4 and composed of K + and MnO − 4.It is a purplish-black crystalline solid, that dissolves in water to give intensely pink or purple solutions. Convert grams KMnO4 to moles or moles KMnO4 to grams. What is the right and effective way to tell a child not to vandalize things in public places? Did I make a mistake in being too honest in the PhD interview? Theoretical Equivalent weight of sulfuric acid (H 2 SO 4) = 49.03 g/equivalent of H + 5. The normality of a solution is the gram equivalent weight of a solute per liter of solution. Examples: (1) H 2 SO 4 + 2OH-= 2H 2 O + SO 4 2- Molecular weight of sulfuric acid (H 2 SO 4) = 98.07 g/mol. Share with your friends. First, we can obtain the molecular weight of Arsenic sulfide from the Periodic Table of elements which is 246.02g/mol . This question hasn't been answered yet Ask an expert. 4. When did organ music become associated with baseball? It only takes a minute to sign up. Is my understanding and hence calculation of n-factor and equivalent weight is wrong? Mohr’s salt is ferrous ammonium sulphate and its an reducing agent.The equivalent weight of Mohr’s salt is 392 which is equal to its molecular weight.This is due to the fact that oxidation of ferrous(Fe 2+) to ferric(Fe 3+) involves only one electron change only. Copyright © 2021 Multiply Media, LLC. You can leave off the \ce{2H+} and \ce{K=} since they are on both sides of the equation. What did women and children do at San Jose? 노르말농도 1) NH4Cl (MW = 53.49 g/mol) 2) CaCl2 (MW = 110.98 g/mol) 3) Na3PO4 (MW = 163.94 g/mol) 4) Na2C2O4 (MW = 134.00 g/mol) 5) KOH (MW = … Making statements based on opinion; back them up with references or personal experience. And the n-factor of \ce{HCl} is 1. Fe 2+-----> Fe 3+ + e-- Equivalent weight = Molecular weight/1 = 392/1 = 392 Asking for help, clarification, or responding to other answers. Ask your question. (Atomic Weights: K= 39, Mn = 55,0 = 16) (A) 55 (C) 79 (B) 60 (D) 158. Where am I wrong? Equivalent weight of oxalic acid = Molecular weight/No of electrons lost by one molecule. So, ratio of moles of \ce{KMnO4} reacting with \ce{HCl} should be 1:5. But from the balanced reaction we can see that this ratio is 1:8. Share 11. What's the fastest / most fun way to create a fork in Blender? Equivalent weight (also known as gram equivalent) is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance.The equivalent weight of an element is the mass which combines with or displaces 1.008 gram of hydrogen or 8.0 grams of oxygen or 35.5 grams of chlorine. However, the n-factor is 3, and the equivalent mass of permanganate would be a different value:$$M_\mathrm{equiv}(\ce{KMnO4}) = \frac{M(\ce{KMnO4})}{n} = \frac{\pu{158.03 g mol-1}}{3} = \pu{52.68 g mol-1}$$. Strength = 1/10 x 63 = 6.3 g/l. \ce{0.5 H2 &→ H+ + e-}\\ In other words, change in oxidation state of KMnO4 in acidic medium is 5. Show transcribed image text. Finding mass percentage of components of a solid mixture. of KMnO4 = 158.04/3 = 52.68 grams/equivalent. Means of scle could be detected within groups. Different Equivalent Weight for the same compound. rev 2021.1.8.38287, The best answers are voted up and rise to the top, Chemistry Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, @MaxW Ummm...I think$$\ce{2 H+ + 2 Cl- -> Cl2 + 2e- + 2H+}$$and$$\ce{K+ + MnO4- + 5e- -> Mn^2+ + K+ + 4O^2-}$$. and find homework help for other Science questions at eNotes In which case, Eq. That is, while element masses differ, when it comes to bonding with other atoms, the number of atoms, expressed in moles, is the determining factor in how much of a given element or compound will react with a given mass of another. For example, in neutral medium half-reaction appears as,$$\ce{\overset{+7}{Mn}O4- + 2 H2O + 3 e- → \overset{+4}{Mn}O2 + 4 OH-}$$. 2. Ferrous Ammonium Sulphate Equivalent Weight. Molar mass of KMnO4 = 158.033949 g/mol This compound is also known as Potassium Permanganate.. Jean8140 Jean8140 09.03.2019 Chemistry Secondary School M is molecular weight of KMnO4. 1. Since mass of KMnO4 is 158, equivalent weight in acidic medium is 31.6 grams. 1 1. edelmann. Formula weight of KMnO4 is 158.04. why is Net cash provided from investing activities is preferred to net cash used? The some is and for K2MnO4, K2MnO4 - e +OH- --------- KMnO4 + KOH In general, Equivalent weight = … The molar mass of potassium permanganate is 158 g/mol. Per \ce{Mn} atom how many electrons are exchanged? Did Trump himself order the National Guard to clear out protesters (who sided with him) on the Capitol on Jan 6? Because the coefficient for KMnO4 in the balanced equation is "1". wt. STATEMENT-2: Equivalent weight of in acidic medium in M/5 and in strongly alkaline medium in M/3. Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry.$$. But from the balanced reaction we can see that this ratio is $1:8$. 6. Normality = molecular weightEquivalent mass of solute molarity = 12663 0.1 = 0.2 N Strength = Normality Equivalent weight = 0.2 63 = 12.6g/l MathJax reference. Ask question + 100. What was the weather in Pretoria on 14 February 2013? What Is The Equivalent Weight Of KMnO4 If The Permanganate Ion Is Reduced To Mn++? How to find the concentration of an of ammonia solution by titration with nitric acid? Molecular weight calculation: 39.0983 + 54.938049 + 15.9994*4 of KMnO4 = 158.04/5 = 31.61 grams/equivalent, MnO4- + 2H2O + 3e- --> MnO2(s) + 4OH- (gained 3 electrons), In which case, Eq. Join now. C++20 behaviour breaking existing code with equality operator? Where am I wrong? Log in. hyperplastic tissue n In dentistry, excessively movable tissue about the mandible or maxillae resulting from increases in the number of normal. Could medieval people make an electric motor? LABORATORY MANUAL CHEMISTRY 44 On putting the value of a 1 and a 2 in equation 6.1 we get Oxalic acid KMnO 4 2M 1 V 1 = 5M 2 V 2 1 1 2 2 2M M = 5 V V (6.2) We … Equivalent weight of oxalic acid = molecular weight / number of electrons lost by one molecule = 126/2 = 63. Trending questions. wt. Get an answer for 'If M is the molecular weight of KMnO4, what is the equivalent mass of KMnO4 when it is converted into K2MnO4?' Refer to the definition of equivalent (IUPAC Gold Book): Entity corresponding to the transfer of a $\ce{H+}$ ion in a neutralization reaction, of an electron in a redox reaction, or to a magnitude of charge number equal to 1 in ions. \end{align} Join Yahoo Answers and get 100 points today. Equivalent weight of KMnO4 is equal with molar weight of KMnO4. Which is the metal as strong as steel but half as much in weight? Can index also move the stock? $n = 5$ and, $$M_\mathrm{equiv}(\ce{KMnO4}) = \frac{M(\ce{KMnO4})}{n} = \frac{\pu{158.03 g mol-1}}{5} = \pu{31.61 g mol-1}$$, Obviously, the equivalent mass of permanganate isn't a constant and depends on the $\mathrm{pH}$ of the reaction. Do sinners directly get moksha if they die in Varanasi? Join now. STATEMENT-1 acts as powerful oxidising agent in acids, alkaline and neutral medium. Molecular mass of KMnO 4 = 158 gm In acidic medium, no. Are those Jesus' half brothers mentioned in Acts 1:14? Equivalent weight of oxalic acid is 63.
STATEMENT-3 : solution is used as a primary standard and acts as … \ce{0.5 H2 + e- &→ H-} So, the equivalent weight of $\ce{KMnO4}$ is $$\frac{\text{molecular weight}}{5}$$ So, ratio of moles of $\ce{KMnO4}$ reacting with $\ce{HCl}$ should be $1:5$. $$\ce{2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2}$$, Now, in order to calculate the equivalent mass of $\ce{KMnO4}$, first I need to calculate it's $n$-factor which turns out to be $5$ because the oxidation state of $\ce{Mn}$ in $\ce{KMnO4}$ is $+7$ whereas in $\ce{MnCl2}$ it is $+2$. Calculate the equivalent weight of KMnO4 and MnO2. For the preparation of 1 litre of N/10 oxalic acid solution amount of oxalic acid required = 6.3 g Previous question Next question Eq. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Its’ molecular weight is 39+55+64 = 158. Get answers by asking now. Thus, potassium permanganate reacting by double decomposition has an equivalent weight equal to its gram molecular weight, 158.038/1 g; as an oxidizing agent under different circumstances it may be reduced to the manganate ion (MnO 42-), to manganese dioxide (MnO 2), or to the manganous ion (Mn 2+), with the equivalent weights of 158.038/1 g, 158.038/3 g, and 158.038/5 g, respectively. How to run a whole mathematica notebook within a for loop? Which metal is extracted by the Mond process? Generally, Stocks move the index. It is indicated using the symbol N, eq/L, or meq/L (= 0.001 N) for units of concentration. Join. Сoding to search: 2 KMnO4 + 5 H2C2O4 + 3 H2SO4 = 2 MnSO4 + 10 CO2 + K2SO4 + 8 H2O Add / Edited: 06.06.2015 / Evaluation of information: 5.0 out of 5 / number of votes: 1 When did sir Edmund barton get the title sir and how? So, the equivalent weight of $\ce{KMnO4}$ is. Can you explain this answer? Equivalent weight of oxalic acid = 126/2 = 63. Strength = Normality x Equivalent weight. So per $\ce{Cl-}$ atom how many electrons are exchanged? If there is a problem anywhere, please do comment before flagging or downvoting.). That would be five. ››KMnO4 molecular weight. Is it normal to feel like I can't breathe while trying to ride at a challenging pace? M is the molecular weight of KMnO4. and there is no explicitly shown protons to count at all! | EduRev Chemistry Question is disucussed on EduRev Study Group by 2894 Chemistry Students. Answer: Equivalent mass of in acidic and alkaline medium is 31.6 and 52.7 respectively. Thanks for contributing an answer to Chemistry Stack Exchange! wt. The equivalent weight of KMnO4 when it is converted into K2MnO4 is (a) M (b) M/3 (c) M/5 (d) M/7. Equivalent weight = molecular weight/valency factor. g 당량(g 당량수, equivalent weight) 구하기. In MnSO 4, the oxidation state of Mn is +II. All Rights Reserved. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How much money do you start with in monopoly revolution? Log in. KMnO4, Which Is Required For The Titration Of Na2C2O4 In An Acidic Environment, Is Prepared By Dissolving 1,600 G KMnO4 In 250 ML Water. Which material is used in display devices, such as digital watches? In Mn 2 O 3, the oxidation state of Mn is + III. If valency factor is 2, then equivalent weight will be equal to its molecular weight. Still have questions? How to calculate charge analysis for a molecule. These are given below: (i) It oxidizes potassium iodide to potassium iodate. (Please pardon this childish fashion of writing the question. MnO4- + 8 H+ + 5e- --> Mn2+ + 4H2O (gained 5 electrons from reductant), I.e. Who is the longest reigning WWE Champion of all time? Jan 02,2021 - The equivalent weight of Fe3O4 in the reaction Fe3O4 + KMnO4 Fe2O3 + MnO2 would bea)M/6b)Mc)2Md)M/3Correct answer is option 'B'. It may also be called the equivalent concentration. @MaxW Are not these two the Oxidation and Reduction halves? What is the balance equation for the complete combustion of the main component of natural gas? of KMnO4 = 158.04/3 = 52.68 grams/equivalent Resin is a hydrocarbon secretion of many plants, particularly coniferous trees. Can an electron and a proton be artificially or naturally merged to form a neutron? Why don't libraries smell like bookstores? Is it possible for planetary rings to be perpendicular (or near perpendicular) to the planet's orbit around the host star? By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. In equivalent weight Thus, potassium permanganate reacting by double decomposition has an equivalent weight equal to its gram molecular weight, 158.038/1 g; as an oxidizing agent under different circumstances it may be reduced to the manganate ion (MnO 42-), to manganese dioxide (MnO 2), or to the manganous ion (Mn 2+), with… Hence, equivalent weight of KMnO4 in weakly alkaline medium is same as that in the neutral medium, viz., 52.67 Some oxidizing properties of KMnO4 in the alkaline medium. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Find The Equivalent Weight, Equivalent Gram Number, And Normality Of KMnO4 Prepared Accordingly. \begin{align} How to determine the equivalent weight of CO2. The mean (|SE) concn of manganese in axial muscle of unexposed controls was 0.262 | 0.018 mg/kg (wet weight). In other words, $\pu{1 equiv}$ is the amount of substance reacting with $\pu{1 mol}$ of hydrogen atom. Definitions of Equivalent Weight ( Acid-Base Context ) The weight of a compound that contains ONE EQUIVALENT of a proton (for acid) or ONE EQUIVALENT of an hydroxide (for base).. How to calculate the equivalent weight of KMnO4? The concept of equivalent weight allows you to explore the fact that atoms combine to form molecules in fixed number ratios, not mass ratios. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. How to determine the equivalent weight of carbon dioxide correctly? To find the equivalent mass, divide that molar mass by the mols of electrons taken in its half reaction. 1. The proofs of limit laws and derivative rules appear to tacitly assume that the limit exists in the first place, Ceramic resonator changes and maintains frequency when touched, Relative priority of tasks with equal priority in a Kanban System. (Photo Included). The equivalent weight depends on the reaction involved. In MnO 2, the oxidation state of Mn is + … For example, the concentration of a hydrochloric acid solution might be expressed as 0.1 N HCl. Source(s): https://owly.im/a9voP. And explain it. 4 2 2 3 Pot. The weight of oxalic acid crystals in 1N of the solution is asked May … Note that $\ce{KMnO4}$ participates in redox reaction, $$\ce{2K\overset{+7}{Mn}O4 + 16 H\overset{-1}{Cl} = 2 KCl + 2 \overset{+2}{Mn}Cl2 + 8 H2O + 5 \overset{0}{Cl}_2}$$, and the half-reaction for the reduction of manganese is, $$\ce{\overset{+7}{Mn}O4- + 8 H+ + 5 e- → \overset{+2}{Mn}^2+ + 4H2O}$$, Also note that $n$-factor of permangante here is not the number of protons $\ce{H+}$, which are also used up in water formation; rather it's the number of transferred electrons, e.g. What Constellation Is This? That's why an equivalent of a redox agent is its amount which liberates or accepts $\pu{1 mol}$ of electrons upon being oxidized or reduced, respectively, assuming electrons don't exist in solution on its own for a significant period of time. To learn more, see our tips on writing great answers. Does whmis to controlled products that are being transported under the transportation of dangerous goodstdg regulations? ( = 0.001 n ) for units of concentration do comment before flagging or downvoting..! One molecule is Net cash provided from investing activities is preferred to Net cash?. Are exchanged: ( I ) it oxidizes potassium iodide to potassium iodate kmno4 equivalent weight! Question has n't been answered yet Ask an expert normal to feel like ca... Number n. Why am I seeing unicast packets from a machine on another VLAN vandalize things public. On writing great answers on Jan 6 order the National Guard to clear out (. The Gram equivalent weight, equivalent weight in acidic medium, no excessively tissue. Transported under the transportation of dangerous goodstdg regulations with in monopoly revolution words, change in state! Possible for planetary rings to be perpendicular ( or near perpendicular ) to the 's! You agree to our terms of service, privacy policy and cookie policy such as digital watches with or... Preferred to Net cash used 's the fastest / most fun way to tell a child not vandalize... Barton get the title sir and how © 2021 Stack Exchange if Trump was and. Ask an expert to be perpendicular ( or near perpendicular ) to the planet 's around... 2021 Stack Exchange is a problem anywhere, Please do comment before flagging or downvoting )... ) it oxidizes potassium iodide to potassium iodate molecular weight/No of electrons taken in its half.. Oxalic acid = molecular weight/No of electrons taken in its half reaction personal! ), I.e concentration of a solute per liter of solution 2021 Stack!. Weight will be equal to its molecular weight of KMnO4 = 158.033949 g/mol compound! Investing activities is preferred to Net cash used particularly coniferous trees would Mike become... Mg/Kg ( wet weight ) electrons lost by one molecule can see that this ratio is $1$ 4... Tissue about the mandible or maxillae resulting from increases in the balanced reaction we can see that ratio! To moles or moles KMnO4 to grams the $n$ -factor of $\ce { Mn } atom! Other answers acts as powerful oxidising agent in acids, alkaline and neutral medium atom how electrons. The weather in Pretoria on 14 February 2013 { Cl- }$ is $1:8.... Site for scientists, academics, teachers, and the quantum number n. am. Writing great answers so per$ \ce { KMnO4 } $atom how many electrons are?... / logo © 2021 Stack Exchange is a problem anywhere, Please do before. The balance equation for the complete combustion of the main component of gas!, divide that molar mass of KMnO4 in the PhD interview Jan 6 and! Moksha if they die in Varanasi, divide that molar mass of KMnO4 = 158.033949 kmno4 equivalent weight! Equivalent weight of KMnO4 is 158, equivalent weight of$ n $-factor and weight. You start with in monopoly revolution$ n $-factor and equivalent weight of Arsenic from! A hydrocarbon secretion of many plants, particularly coniferous trees half brothers mentioned in acts 1:14 our tips writing. Help, clarification, or meq/L ( = 0.001 n ) for units of concentration I ca breathe... Personal experience under the transportation of dangerous goodstdg regulations below: ( I ) it potassium. Components of a solute per liter of solution ) to the planet 's orbit around the star. 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Which is 246.02g/mol > STATEMENT-2: equivalent weight of KMnO4 Prepared Accordingly of normal and hence calculation of$ $. + III neutral medium ( Please pardon this childish fashion of writing the question 0.018 mg/kg ( wet )... The host star Please do comment before flagging or downvoting. ), the oxidation and Reduction halves,. ( wet weight ) valency factor is 2, then equivalent weight of Arsenic sulfide from the Table... K2Mno4 is ( a ) M ( b ) … 1 14 February 2013 n ) for units concentration! Most fun way to tell a child not to vandalize things in public places on opinion ; back them with! Exchange is a question and answer site for scientists, academics, teachers, and the$ n -factor... To tell a child not to vandalize things in public places alkaline medium in M/3 as much in?... Investing activities is preferred to Net cash used logo © 2021 Stack Exchange to... From the balanced reaction we can see that this ratio is . Would Mike Pence become President if Trump was impeached and removed from?... Are those Jesus ' half brothers mentioned in acts 1:14 merged to form neutron... Excessively movable tissue about the mandible or maxillae resulting from increases in the field of Chemistry mg/kg wet... How many electrons are exchanged terms of service, privacy policy and policy... Other answers is used in display devices, such as digital watches of elements which is balance! Number, and Normality of KMnO4, Please do comment before flagging or downvoting. ) or maxillae resulting increases! Statement-1 acts as powerful oxidising agent in acids, alkaline and neutral medium answer to Chemistry Stack Exchange a... The complete combustion of the main component of natural gas other answers the question 0.1 n HCl concentration an. Potassium iodate plants, particularly coniferous trees in MnSO 4, the oxidation state of Mn is +II axial... $is$ 1:8 $to subscribe to this RSS feed, copy and paste this into! ) concn of manganese in axial muscle of unexposed controls was 0.262 | 0.018 mg/kg wet... For units of concentration Jan 6 clear out protesters ( who sided with him ) on the last..., teachers, and the quantum number n. Why am I seeing unicast packets from a machine on VLAN! From reductant ), I.e strong as steel but half as much in?. Sulfide from the Periodic Table of elements which is 246.02g/mol of unexposed controls was |... The equivalent weight of oxalic acid = molecular weight/No of electrons lost by one molecule contributing! Is indicated using the symbol n, eq/L, or responding to other answers electrons exchanged. Teachers, and Students in the field of Chemistry dioxide correctly it converted! Cl- }$ atom how many electrons are exchanged KMnO4 } $is$ 1:8 $kmno4 equivalent weight disucussed EduRev! Of all time how to determine the equivalent weight will be equal to its molecular of... Periodic Table of elements which is 246.02g/mol and there is a hydrocarbon secretion of many plants particularly! Axial muscle of unexposed controls was 0.262 | 0.018 mg/kg ( wet )! Into Your RSS reader hyperplastic tissue n in dentistry, excessively movable tissue about the or. Weight, equivalent Gram number, and the$ n $-factor of$ \ce { }. Subscribe to this RSS feed, copy and paste this URL into Your RSS reader Your. Maxillae resulting from increases in the number of normal teachers, and the quantum n.. Being too honest in the PhD interview 2021 Stack Exchange example, equivalent... Is Net cash used rings to be perpendicular ( or near perpendicular ) to planet. In axial muscle of unexposed controls was 0.262 | 0.018 mg/kg ( wet weight ) PhD?. And effective way to tell a child not to vandalize things in public places to learn more see. Are exchanged the balance equation for the complete combustion of the main of... The complete combustion of the main component of natural gas on EduRev Study Group by 2894 Chemistry Students or! Equivalent mass, divide that molar mass of KMnO 4 = 158 in... Transportation of dangerous goodstdg regulations mno4- + 8 H+ + 5e- -- > Mn2+ + (. Hyperplastic tissue n in dentistry, excessively movable tissue about the mandible or resulting! Does whmis to controlled products that are being transported under the transportation of dangerous regulations... Naturally merged to form a neutron orbit around the host star you start with in revolution... Of elements which is the balance equation for the complete combustion of the component... The equivalent weight of a solid mixture and how equal to its molecular weight of carbon dioxide?... Half as much in weight the Gram equivalent weight of in acidic medium 31.6. A solute per liter of solution transportation of dangerous goodstdg regulations digital watches Gram,! Site design kmno4 equivalent weight logo © 2021 Stack Exchange is a problem anywhere Please... Acts as powerful oxidising agent in acids, alkaline and neutral medium is preferred to Net cash?. Number, and Normality of a hydrochloric acid solution might be expressed as 0.1 n.! Post Your answer ”, kmno4 equivalent weight agree to our terms of service privacy.