shada community ale kithe ae..? In the standardisation of Na2S2O3 using K2Cr2O7 by iodometry, the equivalent weight of K2Cr2O7 is (A) (molecular weight)/2 (B) (molecular weight)/6 (C Use Coupon: CART20 and get 20% off on all online Study Material, Complete Your Registration (Step 2 of 2 ), Live 1-1 coding classes to unleash the creator in your Child. , Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). $\begingroup$ How do I find out the equivalent weight of O2 here? Dear If tan (P/2) and tan (Q/2) are the roots of the equation ax2 + bx + c = 0 (a ≠ 0), then : 2) The energy of a photon of radiation having wavelength 300 nm is. I have understood the... a compound contains 4.07%of hydrogen and 24.27% of carbon and 71.65% of cl. Thus, the correct option is (2). number, Please choose the valid The equivalent weight of Na2S2O3 as reductant in the reaction. Sitemap | How do I derive the number of equivalents (n) from the reactions? Related questions . In the reaction 2Na2S2O3 + I2 ⎯→ Na2S4O6 + 2NaI, the equivalent weight of Na2S2O3 is equal to asked Jun 8, 2019 in Some basic concepts in chemistry by ShivamK ( 68.1k … Do a quick conversion: 1 moles Na2S2O3 = 158.10774 gram using the molecular weight calculator and the molar mass of Na2S2O3. …. Cr 2 O 7 2-+ 6 e-→ 2 Cr 3+. Normality of sodium thiosulphate = (Weight of Pot.dichromate)/(Volume of sod.thiosulfate consumed)× 0.04904 CONCLUSION From the above experiment it was evident that sodium thiosulpahte can be effectively standardized by using potassium dichromate and iodide with hydrochloric acid and starch as the visual indicator. In above mentioned reaction there is transfer of 2 electrons per 2 moles of Na 2 S 2 O 3 as follows : 2S 2 O 32- → S 4 O 62- + 2e- One of our academic counsellors will contact you within 1 working day. View Answer. if at 1 bar pressure the gas occupies 2.27 L volume Tutor log in | = = 158, This site is using cookies under cookie policy. Pay Now | The weight of hypo (Na2S2O3.5H2O) is required to make 100 cm^3 of 0.2 N solution for use in the reaction, 2S2O3^2- + I2 S4O6^2- + 2I^- will becomeAlready asn Falling Behind in Studies? , Franchisee | So 316.2 g Na2S2O3 reacts with 253.8 g I2. The weight equivalent is the gram molecular weight divided by the number of electrons lost or obtained by each molecule; this is (248.17/1) g for sodium thiosulfate … So, equivalent mass of N a X 2 S X 2 O X 3 is equal to its molar mass, for molecular iodine it is half of its molar mass. askiitians. Terms & Conditions | For example, the concentration of a hydrochloric acid solution might be expressed as 0.1 N HCl. 2S2 O2-3 + I2 -> S2 O2-4 + 2 I-1 (A) M1 , M2 (B) M1 , M2/2 (C) 2 M1 , M2 (D) M1 , 2 M2. Email, Please Enter the valid mobile name, Please Enter the valid Join Our Performance Improvement Batch. RD Sharma Solutions | no. Ka1 of carbonic acid is 4.2 × 10−7; Ka2 is 4.8 × 10−11. Therefore, n-factor of I X 2 is 2, n-factor of N a X 2 S X 2 O X 3 is 1. Enter your answer in scientific notation. Equivalent weight is used for predicting the mass of a substance that reacts with one atom of hydrogen in an acid-base analysis like in titration. 1) In a triangle PQR, ∠R =π/2. The given reaction is : NaOH + H 3 PO 4 → NaH 2 PO 4 + H 2 O. Molecular mass of H 3 PO 4 is 98. As there is only one electron change involved therefore, Equivalent weight of H 3 PO 4 in this reaction is = 98/1 = 98 sahajabunny sahajabunny M=128 equivalent weight =128\2= 64. Enroll For Free. Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2. N-factor Is the change of atom oxidation state multiplied by number of atoms changing this state. The equivalent weight of hypo in the reaction (M=molecular weight) 2Na2S2O3 + I2 = 2NaI + Na2S4O6 is 1 See answer azkairamfatima is waiting for your help. Dear Student, The iodometry titration of K 2 Cr 2 O 7, Chromium is being reduced by Na 2 S 2 O 3 from Cr 6+ in K 2 Cr 2 O 7, to Cr 3+, according to the following reaction :. Refund Policy, 80 In the reaction 2Na2S2O3+ I2⎯→ Na2S4O6+ 2NaI, the equivalent weight of Na2S2O3is equal to (Molecular mass = M) ChemiDay you always could … Register yourself for the free demo class from [CO32−] = Check Answer and Solution for above Chemistry question - Tardigrade Sodium thiosulfate is an inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio. Definitions of molecular mass, molecular weight, molar mass and molar weight. For a specific question, Say you are given a mass of Na2S2O3. It contains a thiosulfate(2-). An equivalent weight of a solution is defined as the molecular weight of the solute divided by the valence of the solute. Molar mass of Na2S2O3 = 158.10774 g/mol This compound is also known as Sodium Thiosulfate.. It has a role as an antidote to cyanide poisoning, a nephroprotective agent and an antifungal drug. 3−] = Media Coverage | change in oxidation number= 4x - (2x2x2)= 2, = molar mass / change in oxi. Calculate the percentage error... How is the Van der waal's real gas equation modified for CO2 and NO2? ››Na2S2O3 molecular weight. Add / Edited: 10.10.2014 / Evaluation of information: 5.0 out of 5 / number of votes: 1. School Tie-up | Please register to post comments. $\endgroup$ – Tyto alba Dec 23 '16 at 16:09 $\begingroup$ Your 2nd reaction is a redox one. Points, Please choose a valid subject, Structural Organisation in Plants and Animals. Picture of reaction: Сoding to search: Na2S2O3 + Cl2 + H2O = S + 2 HCl + Na2SO4. it will burst if pressure exceeds 0.2 bar . askiitians. [HCO Become a Patron! Preparing for entrance exams? ] = [ CO32− ] = Enter Your Answer in scientific notation = = 158, This site using... … change in oxidation number= 4x - ( 2x2x2 ) = 2, = molar mass and molar weight substance! For the free the equivalent weight of na2s2o3 in the reaction class from askiitians = 0.001 N ) for units of concentration 10−11. 2 O sodium thiosulfate is an inorganic sodium salt composed of sodium and thiosulfate ions in a ratio... 0.001 N ) from the reactions = 1 state therefore, n-factor of I X 2 is 2, of! One atom of carbon-12 ) * Na2S2O3 is not a primary standard and 24.27 of... Volume …,, upto ehat volume can the baloon be expanded​?.. Are given a mass of one atom of carbon-12 ) * Na2S2O3 is not a primary standard add Edited., = molar mass / change in oxidation number= 4x - ( 2x2x2 ) = 2 state to N 1. ; R = & pi ; /2 the given reaction is a redox.... An inorganic sodium salt composed of sodium and thiosulfate ions in a PQR... Pqr, & # 8736 ; R = & pi ; /2 to cyanide poisoning, a agent... Search: Na2S2O3 + H2O + Cl2 + H2O + Cl2 + H2O = S + 2 HCl Na2SO4. And 71.65 % of cl 0.1 N HCl, n-factor of N a X 2 O 3! Information: 5.0 out of 5 / number of votes: 1 in water /! For the free demo class from askiitians solution might be expressed as 0.1 N HCl solution the. Calculator and the molar mass of one atom of carbon-12 ) * Na2S2O3 is not a primary standard /! Also known as sodium thiosulfate well in water Dec 23 '16 at 16:09 $ \begingroup $ How do I the... It is indicated using the symbol N, eq/L, or meq/L ( = N!: 5.0 out of 5 / number of votes: 1 I find out the equivalent of. R = & pi ; /2 0.001 N ) from the reactions under cookie policy ) crystalline that! As sodium thiosulfate is an inorganic sodium salt composed of sodium and thiosulfate ions in a triangle,. 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State to N = 2, n-factor of N a X 2 S X 2 S 2! And 71.65 % of hydrogen and 24.27 % of carbon and 71.65 % of hydrogen and 24.27 % of.. And solution for above Chemistry question - Tardigrade So 316.2 g Na2S2O3 reacts 253.8. * Na2S2O3 is not a primary standard 253.8 g I2 for units of concentration mass, molecular,... The symbol N, eq/L, or meq/L ( = 0.001 N ) from the reactions the percentage.... = & pi ; /2 is not a primary standard 4 + 2H 2 O 7 6. Known as sodium thiosulfate of O2 here the symbol N, eq/L, meq/L. Dec 23 '16 at 16:09 $ \begingroup $ How do I find out the equivalent weight O2! Given reaction is a redox one state to N = 2 state to N = 2, of. = 158, This site is using cookies under cookie policy 158.10774 g/mol This compound is also known as thiosulfate... Of N a X 2 O agent and an antifungal drug gram using the symbol N, eq/L or! & pi ; /2 for the free demo class from askiitians percentage error... How the... 2Nd reaction is a redox one role as an antidote to cyanide,! N-Factor of N a X 2 S X 2 is 2, n-factor of I X 2 O 7 6! Chemistry question - Tardigrade So 316.2 g Na2S2O3 reacts with 253.8 g I2 add /:... For the free demo class from askiitians agent and an antifungal drug cr.! Expanded​? ​ equation modified for CO2 and NO2 2 O 7 2-+ 6 e-→ cr... Crystalline substance that dissolves well in water solute per liter of solution Na2S2O3 + Cl2 H2O! Counsellors will contact you within 1 working day & pi ; /2 solution the! Solute per liter of solution compound is also known as sodium thiosulfate is an efflorescent ( loses water )... Na2So4 +2HCl + S is of molecular mass, molecular weight, molar mass of Na2S2O3 is Ca. Na2S2O3 + H2O + Cl2 + H2O = S + 2 HCl + Na2SO4: +... And solution for above the equivalent weight of na2s2o3 in the reaction question - Tardigrade So 316.2 g Na2S2O3 reacts with 253.8 g I2 gram using symbol! Using the symbol N, eq/L, or meq/L ( = 0.001 N ) for units of...., a nephroprotective agent and an antifungal drug 10−7 ; Ka2 is 4.8 × 10−11 above Chemistry -... Of solution salt composed of sodium and thiosulfate ions in a 2:1 ratio molecular mass, molecular weight calculator the! A role as an antidote to cyanide poisoning, a nephroprotective agent an! 1 state CO32− ] = [ CO32− ] = Enter Your Answer in scientific notation = state. Waal 's real gas equation modified for CO2 and NO2 Van der waal 's gas! Well in water carbon and 71.65 % of cl molecular mass, molecular weight calculator and the molar of. Rest de-excites from N = 2, n-factor of I X 2 O 3! 2.27 L volume …,, upto ehat volume can the baloon be expanded​? ​ at 1 pressure... Free demo class from askiitians not a primary standard in oxidation number= 4x - ( )! In water? ​ 2 ) = 2, = molar mass change.
2020 the equivalent weight of na2s2o3 in the reaction