Answer
a. 5.87 g of $K$
b. 10.6 g of $Cl_2$
c. 15.9 g of $Na_2CO_3$
Work Step by Step
a.
- Calculate or find the molar mass for $ K $:
$ K $ : 39.10 g/mol
- Using the molar mass as a conversion factor, find the mass in g:
$$ 0.150 \space mole \times \frac{ 39.10 \space g}{1 \space mole} = 5.87 \space g$$
b.
- Calculate or find the molar mass for $ Cl_2 $:
$ Cl_2 $ : ( 35.45 $\times$ 2 )= 70.90 g/mol
- Using the molar mass as a conversion factor, find the mass in g:
$$ 0.150 \space mole \times \frac{ 70.90 \space g}{1 \space mole} = 10.6 \space g$$
c.
- Calculate or find the molar mass for $ Na_2CO_3 $:
$ Na_2CO_3 $ : ( 22.99 $\times$ 2 )+ ( 12.01 $\times$ 1 )+ ( 16.00 $\times$ 3 )= 105.99 g/mol
- Using the molar mass as a conversion factor, find the mass in g:
$$ 0.150 \space mole \times \frac{ 105.99 \space g}{1 \space mole} = 15.9 \space g$$
