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General Chemistry - Standalone boo...

11th Edition
Steven D. Gammon + 7 others
ISBN: 9781305580343

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BuyFindarrow_forward

General Chemistry - Standalone boo...

11th Edition
Steven D. Gammon + 7 others
ISBN: 9781305580343
Textbook Problem

Commercially, sulfuric acid is usually obtained as an 98% solution. If this solution is 18 M, what is its density? What is its molality?

Interpretation Introduction

Interpretation:

Molality and density of 18 M sulfuric acid which has 98% of its mass in solution have to be calculated.

Concept Introduction:

Mass percent is one of the parameters that is used to express concentration of a solution.  It is expressed as,

Mass percent of a solute = mass of solutemass of solution × 100%

Molarity is a term used to express concentration of a solution.  It is expressed as,

Molarity = number of moles of solutevolume of solution in L

The term Molality is used to express concentration of a solution.  It is expressed as,

Molality = number of moles of solutemass of solvent in kg

Explanation

Assume that volume of solution is 1.000 L , then number of moles of sulfuric acid in 18 M solution is,

Molarity number of moles of H2SO4volume of solution in Lno.of moles = Volume of solution × molarity = 1.000 L × 18 M = 18 mol

In 18M solution of sulphuric acid,

no.of moles of H2SO4 mass of H2SO4molar mass of H2SO4Mass of H2SO4 = molar mass × no.of moles = 98.09 g/mol × 18 mol = 1765.62 g

As we know,

Mass percent of a H2SO4 mass of H2SO4mass of solution × 100%Mass of solution mass of H2SO4Mass percent = 1765

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Chapter 12 Solutions

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Sect-12.4 P-12.7ESect-12.4 P-12.8ESect-12.4 P-12.9ESect-12.4 P-12.10ESect-12.4 P-12.11ESect-12.5 P-12.12ESect-12.5 P-12.5CCSect-12.6 P-12.13ESect-12.6 P-12.14ESect-12.6 P-12.15ESect-12.7 P-12.16ESect-12.7 P-12.6CCSect-12.8 P-12.17ESect-12.8 P-12.7CCSect-12.9 P-12.18ESect-12.9 P-12.8CCCh-12 P-12.1QPCh-12 P-12.2QPCh-12 P-12.3QPCh-12 P-12.4QPCh-12 P-12.5QPCh-12 P-12.6QPCh-12 P-12.7QPCh-12 P-12.8QPCh-12 P-12.9QPCh-12 P-12.10QPCh-12 P-12.11QPCh-12 P-12.12QPCh-12 P-12.13QPCh-12 P-12.14QPCh-12 P-12.15QPCh-12 P-12.16QPCh-12 P-12.17QPCh-12 P-12.18QPCh-12 P-12.19QPCh-12 P-12.20QPCh-12 P-12.21QPCh-12 P-12.22QPCh-12 P-12.23QPCh-12 P-12.24QPCh-12 P-12.25QPCh-12 P-12.26QPCh-12 P-12.27QPCh-12 P-12.28QPCh-12 P-12.29QPCh-12 P-12.30QPCh-12 P-12.31QPCh-12 P-12.32QPCh-12 P-12.33QPCh-12 P-12.34QPCh-12 P-12.35QPCh-12 P-12.36QPCh-12 P-12.37QPCh-12 P-12.38QPCh-12 P-12.39QPCh-12 P-12.40QPCh-12 P-12.41QPCh-12 P-12.42QPCh-12 P-12.43QPCh-12 P-12.44QPCh-12 P-12.45QPCh-12 P-12.46QPCh-12 P-12.47QPCh-12 P-12.48QPCh-12 P-12.49QPCh-12 P-12.50QPCh-12 P-12.51QPCh-12 P-12.52QPCh-12 P-12.53QPCh-12 P-12.54QPCh-12 P-12.55QPCh-12 P-12.56QPCh-12 P-12.57QPCh-12 P-12.58QPCh-12 P-12.59QPCh-12 P-12.60QPCh-12 P-12.61QPCh-12 P-12.62QPCh-12 P-12.63QPCh-12 P-12.64QPCh-12 P-12.65QPCh-12 P-12.66QPCh-12 P-12.67QPCh-12 P-12.68QPCh-12 P-12.69QPCh-12 P-12.70QPCh-12 P-12.71QPCh-12 P-12.72QPCh-12 P-12.73QPCh-12 P-12.74QPCh-12 P-12.75QPCh-12 P-12.76QPCh-12 P-12.77QPCh-12 P-12.78QPCh-12 P-12.79QPCh-12 P-12.80QPCh-12 P-12.81QPCh-12 P-12.82QPCh-12 P-12.83QPCh-12 P-12.84QPCh-12 P-12.85QPCh-12 P-12.86QPCh-12 P-12.87QPCh-12 P-12.88QPCh-12 P-12.89QPCh-12 P-12.90QPCh-12 P-12.91QPCh-12 P-12.92QPCh-12 P-12.93QPCh-12 P-12.94QPCh-12 P-12.95QPCh-12 P-12.96QPCh-12 P-12.97QPCh-12 P-12.98QPCh-12 P-12.99QPCh-12 P-12.100QPCh-12 P-12.101QPCh-12 P-12.102QPCh-12 P-12.103QPCh-12 P-12.104QPCh-12 P-12.105QPCh-12 P-12.106QPCh-12 P-12.107QPCh-12 P-12.108QPCh-12 P-12.109QPCh-12 P-12.110QPCh-12 P-12.111QPCh-12 P-12.112QPCh-12 P-12.113QPCh-12 P-12.114QPCh-12 P-12.115QPCh-12 P-12.116QPCh-12 P-12.117QPCh-12 P-12.118QPCh-12 P-12.119QPCh-12 P-12.120QPCh-12 P-12.121QPCh-12 P-12.122QPCh-12 P-12.123QPCh-12 P-12.124QPCh-12 P-12.125QPCh-12 P-12.126QPCh-12 P-12.127QPCh-12 P-12.128QPCh-12 P-12.129QPCh-12 P-12.130QPCh-12 P-12.131QPCh-12 P-12.132QPCh-12 P-12.133QPCh-12 P-12.134QPCh-12 P-12.135QPCh-12 P-12.136QPCh-12 P-12.137QPCh-12 P-12.138QPCh-12 P-12.139QPCh-12 P-12.140QPCh-12 P-12.141QPCh-12 P-12.142QP

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