Question

part d
calculate the formula mass for dinitrogen trioxide.
express your answer in atomic mass units to two decimal places.
formula mass =

amu

Explanation:

Step1: Determine the formula of dinitrogen trioxide

Dinitrogen trioxide has the chemical formula \( \text{N}_2\text{O}_3 \). This means there are 2 nitrogen (N) atoms and 3 oxygen (O) atoms in one molecule.

Step2: Find the atomic masses of N and O

The atomic mass of nitrogen (N) is approximately \( 14.01 \, \text{amu} \) and the atomic mass of oxygen (O) is approximately \( 16.00 \, \text{amu} \).

Step3: Calculate the total mass for each element

For nitrogen: \( 2 \times 14.01 \, \text{amu} = 28.02 \, \text{amu} \)
For oxygen: \( 3 \times 16.00 \, \text{amu} = 48.00 \, \text{amu} \)

Step4: Sum the masses of all elements

To find the formula mass, add the total mass of nitrogen and oxygen:
\( 28.02 \, \text{amu} + 48.00 \, \text{amu} = 76.02 \, \text{amu} \)

Answer:

\( 76.02 \)