1 mole of ammonia is of 17 g. Then what is the mass of 0.3 moles of am

1.	1 mole of ammonia is of 17 g. Then what is the mass of 0.3 moles of ammonia?
A.	21g
B.	2.1g
C.	17g
D.	1g
Answer» C. 17g

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