Question

Find the total number of pennies in a tenth of a mole of pennies.

• A. $6.02\times {10}^{23}$ pennies
• B. 10 pennies
• C. $6.02\times {10}^{22}$ pennies
• D. 0.1 pennies
• E. 1 penny

Answer 1

The correct option is C $6.02\times {10}^{22}$ pennies

Number of pennies in one mole of pennies $=6.02\times {10}^{23}$ (Avogadro's number)

Therefore, total number of pennies in a tenth of a mole of pennies $=\frac{1}{10}\times 6.02\times {10}^{23}=6.02\times {10}^{22}$ pennies