Question

calculate the formula mass for dinitrogen trioxide.
express your answer in atomic mass units to two decimal places.
formula mass =
amu
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Explanation:

Step1: Determine the formula of dinitrogen trioxide

Dinitrogen trioxide has the formula \( \text{N}_2\text{O}_3 \) (2 nitrogen atoms and 3 oxygen atoms).

Step2: Find the atomic masses

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

Step4: Sum the masses

Add the masses of nitrogen and oxygen: \( 28.02 + 48.00 = 76.02 \, \text{amu} \)

Answer:

\( 76.02 \)