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# A pure copper cube has an edge length of 1.42 cm. How many ISBN: 9780321910295 34

## Solution for problem 103P Chapter 6

Introductory Chemistry | 5th Edition

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Problem 103P

A pure copper cube has an edge length of 1.42 cm. How many copper atoms does it contain? (volume of a cube = (edge length)3; density of copper = 8.96 g/cm3)

Step-by-Step Solution:

Solution 103P

Step 1:

Given :

Edge length of Cu cube = 1.42 cm

Volume of a cube(V) = (edge length)3 = (1.42cm)3 = 2.86 cm3

Density of copper( ) = 8.96 g/cm3.

Number of copper atoms the cube contains = ?

We are given the density and volume, let’s calculate the mass of the copper using the density formula : =  m = V m = 25.62 g

Therefore the mass of the copper in the copper cube is 25.62 g.

Step 2 of 2

##### ISBN: 9780321910295

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