Explanation Given information: CaCO 3 is prepared by dissolving 1.000 L of CO 2 gas (at 20 0 C and 731 mmHg ) and 3.335 g of solid Ca(OH) 2 in enough water to make 500.0 mL of solution at 50 0 C . The number of moles of CO 2 gas, P V = n R T 731 760 atm × 1 .000 L = n × 0 .08206 L .atm/K .mol × 293 K n = 0.961 atm × 1 .000 L 0 .08206 L .atm/K .mol × 293 K n = 0 .04 mol Concentration of CO 2 gas in aqueous solution assuming all the gaseous molecules have dissolved in water = 0.04 mol 0.5 L = 0.08 M The number of mole of Ca(OH) 2 = 3.335 g 74.0927 g/mol = 0.045 mol Concentration of Ca(OH) 2 = 0.045 mol 0.5 L = 0.09 M Using the following equations: (1) CO 2 ( aq ) + H 2 O ( l ) ⇌ H + ( aq ) + HCO 3 – (aq) (2) HCO 3 - (aq) +H 2 O (l) ⇌ H 3 O + (aq )+CO 3 2- (aq) (3) Ca ( OH ) 2 → Ca 2+ + 2 OH - (4) CaCO 3(s) ⇌ Ca 2+ (aq) +CO 3 2- (aq) For the equation (1); K a 1 = [ H + ] [ HCO 3 − ] [ CO 2 ] 4.3 × 10 − 7 = x 2 ( 0

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Chapter 18, Problem 18.139MP

Interpretation Introduction

Interpretation:

The molar solubility of CaCO3 should be calculated.

Concept introduction:

The ideal gas equation is represented as follows:

PV=nRT

Here,

P − pressure

V- volume

n − number of moles

R − universal gas constant

T − absolute temperature

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Chapter 18, Problem 18.138MP

Chapter 18, Problem 18.140MP

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Chapter 18 Solutions

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General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY

The molar solubility of CaCO 3 should be calculated. Concept introduction: The ideal gas equation is represented as follows: P V = n R T Here, P − pressure V- volume n − number of moles R − universal gas constant T − absolute temperature

Solution Summary: The author explains how the molar solubility of CaCO_3 should be calculated.

Concept explainers

Videos

Interpretation:

The molar solubility of CaCO3 should be calculated.

Concept introduction:

The ideal gas equation is represented as follows:

PV=nRT

Here,

P − pressure

V- volume

n − number of moles

R − universal gas constant

T − absolute temperature

Want to see the full answer?

Chapter 18 Solutions

The molar solubility of CaCO 3 should be calculated. Concept introduction: The ideal gas equation is represented as follows: P V = n R T Here, P − pressure V- volume n − number of moles R − universal gas constant T − absolute temperature

Solution Summary: The author explains how the molar solubility of CaCO_3 should be calculated.

Concept explainers

Videos

Interpretation: The molar solubility of CaCO3 should be calculated. Concept introduction: The ideal gas equation is represented as follows: PV=nRT Here, P − pressure V- volume n − number of moles R − universal gas constant T − absolute temperature

Want to see the full answer?

Chapter 18 Solutions

Interpretation:

The molar solubility of CaCO3 should be calculated.

Concept introduction:

The ideal gas equation is represented as follows:

PV=nRT

Here,

P − pressure

V- volume

n − number of moles

R − universal gas constant

T − absolute temperature