Question

A tenth of a mole of pennies contains how many pennies?

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

Answer 1

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

A mole of pennies contains $6.02\times {10}^{23}$ pennies.
A tenth of a mole of pennies contains $\frac{6.02\times {10}^{23}}{10}=6.02\times {10}^{22}$ pennies.