Answer
a. 0.463 mole
b. 0.0167 mole
c. 0.881 mole
d. 1.17 mole
Work Step by Step
- Calculate or find the molar mass for the compound:
a. 107.9 g/mol
b. 12.01 g/mol
c. ( 1.008 $\times$ 3 )+ ( 14.01 $\times$ 1 )= 17.03 g/mol
d. ( 16.0 $\times$ 2 )+ ( 32.06 $\times$ 1 )= 64.06 g/mol
- Using the molar mass as a conversion factor, find the amount in moles:
a. $$ 50.0 \space g \times \frac{1 \space mole}{ 107.9 \space g} = 0.463 \space mole$$
b. $$ 0.200 \space g \times \frac{1 \space mole}{ 12.01 \space g} = 0.0167 \space mole$$
c, $$ 15.0 \space g \times \frac{1 \space mole}{ 17.03 \space g} = 0.881 \space mole$$
d. $$ 75.0 \space g \times \frac{1 \space mole}{ 64.06 \space g} = 1.17 \space mole$$
