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calculate the moles of ammonia present in a 3.360 g sample of ammonia, which has a molar mass of 17.030 g/mol.

User Chris Gow
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1 Answer

4 votes

Answer:


\huge{ \boxed{0.197 \: \text{moles}}}

Step-by-step explanation:

The number of moles of ammonia can be found by using the formula:


n = (m)/(M)

where

m is the mass in grams

M is the molar mass in g/mol

n is the number of moles

From the question:

m = 3.360 g

M = 17.030 g/mol


\therefore \: n = (3.360)/(17.030) \\ = 0.19728 \approx \: 0.197 \: moles\\

We have the final answer as;

0.197 moles

User Trent Tamura
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7.9k points