   Chapter 15, Problem 97AP ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

#### Solutions

Chapter
Section ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
5 views

# 97. Aqueous ammonia is typically sold by chemical supply houses as the saturated solution, which has a concentration of 14.5 mol/L. What volume of NH1 at STP is required to prepare 100 mL of concentrated ammonia solution?

Interpretation Introduction

Interpretation:

The volume of NH3 at STP required to prepare 100.mL of concentrated ammonia solution is to be calculated.

Concept Introduction:

Solution is composed of solute and solvent particles. Solute particles are always present in lower amount as compared to amount of the solvent in the solution. The atomic mass of an element is defined as the sum of number of protons and number of neutrons. Molar mass of an element is determined from atomic mass of an element.

The molarity is calculated by the formula,

Molarity=NumberofmolesofsoluteVolumeofsolutionL.

Explanation

The molarity of the solution is given to be 14.5mol/L.

The conversion of units of 100.mL into L is done as,

100.mL=100.1000L=0.1L

The number of moles of solute in a solution is calculated by the formula,

Moles=Molarity×Volumeofsolution        (1)

Substitute the values of molarity and volume of solution in the equation (1).

Moles=14.5mol/L×0.1L=1.45moles

At STP, the molar volume of ammonia is 22.4L/mol

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started 