   Chapter 2, Problem 157GQ

Chapter
Section
Textbook Problem

In an experiment, you need 0.125 mol of sodium metal. Sodium can be cut easily with a knife (Figure 2.5), so if you cut out a block of sodium, what should the volume of the block be in cubic centimeters? If you cut a perfect cube, what is the length of the edge of the cube? (The density of sodium is 0.97 g/cm3.)

Interpretation Introduction

Interpretation: The volume of sodium block and the length of edge of the cube should be calculated.

Concept introduction:

Conversion formula for mass of a molecule and number moles,

Numberofmoles=MassingramsMolarmass

Equation for volume from mass and density is,

Volume=MassDensity

Equation for finding Volume of cube is,

Volume=a3,asideofcube

Explanation

The number of moles of sodium atoms is given that 0.125mol.

Conversion formula for mass of an atom and number moles,

Numberofmoles×Molarmass=Massingrams

Therefore, the mass of sodium is,

0.125mol×23g/mol=2

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

Find more solutions based on key concepts 