A scale removal1- Calculate the molar volume of a perfect gas at 20 C and P = 1 bar. R-8.314 JK' mol".2- 200 ml of HCI (8) gas hydrogen chloride are dissolved in a volume V = 50 ml of water.a) Write the equation of the dissociation reaction of this acid in waterb) Calculate the concentration of HCl in water and deduce the PH of the obtainedsolution.3 Sodium hydroxide is used as descaling agent, a Sodium hydroxide solution is preparedby dissolving 10 grams in 500 ml of water, a Si solution is obtained. In order tocalculate the concentration of S1, 20 ml of S, are titrated by the hydrochloric acidalready prepared. Equivalence is obtained after adding a volume Veq = 225 ml ofhydrochloric acid.a) Write the equation for the titration reaction.b) Determine the concentration of S. Calculate the mass of NaOH in S:c) Deduce the mass percentage of NaOH.4- Find the relation between PH and the volume of acid added at each instant ofter andbefore the equivalence.5- Complete the following table:Va (ml)| 225103040PH6- Trace the shape of the curve PH = f(Va).scale: X-axis: 1 cm = 4 mly axis: 1 cm = 1 PH unit

Molar volume is the volume occupied by one mole of a gas. i.e. n = 1

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1- Calculate the molar volume of a perfect gas at 20*Cand P=1 bar. R-8.314 JK mol".

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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