# How many grams are in 0.75 moles of CO_2?

33g

#### Explanation:

$n = \frac{m}{M}$

Where:
- n is the amount or number of moles
- m is the mass in grams
- M is the molar mass in grams/mole

$n = 0.75$

Calculate molar mass by adding the atomic masses of all atoms in the molecule
$M = 12 + 16 \cdot 2$
$= 44$

$m = n \cdot M$
$= 0.75 \cdot 44$
$= 33 g$