Just b (i-ii) 12.A student carries out a titration to find the concentration of some sulfuric acid.(a)The student finds that 25.00 cm°of 0.0880 mol dm aqueous sodiumhydroxide, NaOH, is neutralised by 17.60 cm°of dilute sulfuric acid,H2SO4.-3H2SO(aq) + 2NaOH(aq) → Na2SO,(aq) + 2H2O(1)(1)Vome o8 NaoH= 7S ,00 em-Molarity of NaoHe O,0880 mol dm-3Volume of M28043 17,60 cvndmoles =Calculate the amount, in moles, of NaOH used.25,00dm1000molority y rolume0.0880X2025answer = .2.NQ022 mol(ii)Determine the amount, in moles, of H2SO4 used.0.0011O10022answer =mol(iii) Calculate the concentration, in mol dm, of the sulfuric acid.concantrationolesVoIUme%3D0,00110.0176(29675answer =mol dm3(b) After carrying out the titration in (a), the student left the resulting solution tocrystallise. White crystals were formed, with a formula of Na2S04°x H20and a molar mass of 322.1 g mol.(1)What term is given to the x H2O' part of the formula?(ii)Using the molar mass of the crystals, calculate the value of x.answer =

B) (i) water of crystallisation

mól dm (b) After carrying out the titration in (a), the student left the resulting solution to crystallise. White crystals were formed, with a formula of Na2S04°x H20 and a molar mass of 322.1 g mol. 3:3.1. (1) What term is given to the x H2O' part of the formula? (ii) Using the molar mass of the crystals, calculate the value of x.

mól dm (b) After carrying out the titration in (a), the student left the resulting solution to crystallise. White crystals were formed, with a formula of Na2S04°x H20 and a molar mass of 322.1 g mol. 3:3.1. (1) What term is given to the x H2O' part of the formula? (ii) Using the molar mass of the crystals, calculate the value of x.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 18.103QE

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