The empirical formula of a compound with a molecular formula N2O4 is (2) NO2.
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The mass of nitrogen gas that participated in the chemical reaction is 1.54g
HOW TO CALCULATE MASS OF AN ELEMENT:
- Mass of a substance can be calculated by multiplying the number of moles in mol of the substance by its molecular mass in g/mol. That is;
- mass (M) = molar mass (MM) × number of moles (n)
According to this question, a chemist determines by measurements that 0.0550 moles of nitrogen gas (N2) participate in a chemical reaction.
- The molecular mass of nitrogen gas (N2) = 14.01(2)
= 28.02g/mol
Hence, the mass of the nitrogen gas that participated in the chemical reaction is calculated as follows:
- Mass (g) = 0.0550 mol × 28.02 g/mol
Therefore, the mass of nitrogen gas that participated in the chemical reaction is 1.54g
Learn more: brainly.com/question/18269198
Known :
r = 6 in
h = 11 in
Asked :
Volume = ...?
Answer :
V = πr²h
= 3.14 × 6² × 11
= 3.14 × 36 × 11
= 3.14 × 396
= <u>1</u><u>,</u><u>2</u><u>4</u><u>3</u><u>.</u><u>4</u><u>4</u><u> </u><u>in³</u>
So, the volume is 1,243.44 in³ (2nd choice)
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Answer:
They both have letters and different formulas to find the answer.
Explanation:
I would say there is 10 (2 in the ethyl group, 3 in the three methyl groups and 5 in the pent chain)
