To find the mass of 3.45 moles of [tex]\( \text{NO}_2 \)[/tex], follow these steps:
1. Identify the given values:
- Number of moles ([tex]\( n \)[/tex]) of [tex]\( \text{NO}_2 \)[/tex]: 3.45 moles
- Molar mass ([tex]\( M \)[/tex]) of [tex]\( \text{NO}_2 \)[/tex]: 46.01 g/mol
2. Recall the formula to determine the mass ([tex]\( m \)[/tex]) of a substance when given the moles and the molar mass:
[tex]\[
m = n \times M
\][/tex]
3. Substitute the given values into the formula:
[tex]\[
m = 3.45 \, \text{moles} \times 46.01 \, \text{g/mol}
\][/tex]
4. Perform the multiplication to find the mass:
[tex]\[
m = 158.7345 \, \text{g}
\][/tex]
Therefore, the mass of 3.45 moles of [tex]\( \text{NO}_2 \)[/tex] is 158.7345 grams.
