Question #075e6

1 Answer
F
Nov 7, 2017

#=9.02*10^22"molecules"NH_3#

Explanation:

2550 mg is equal to 2.550 g

The molar mass of #NH_3# is 17.031 g/mol

#2.550gNH_3*(1molNH_3)/(17.031gNH_3)*(6.022*10^23"molecules"NH_3)/(1molNH_3)#

#=9.02*10^22"molecules"NH_3#

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