Chapter 2, Problem 157GQ

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Chapter
Section

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
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 0.125â€‰mol.

Conversion formula for mass of an atom and number moles,

Numberâ€‰ofâ€‰molesÃ—Molarâ€‰massâ€‰â€‰=â€‰â€‰Massâ€‰inâ€‰grams

Therefore, the mass of sodium is,

Â Â Â Â 0.125â€‰molÃ—23g/molâ€‰â€‰=â€‰â€‰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