Question

calculate the number of moles in 34 gram of ammonia

Answer 1

I mole of ammonia has mass of 17g.

Hence 34g of it will have

=34/17 moles

= 2 moles

Answer 2

no.of moles =given mass/molar mass

                    =34/17

                    =2

therefore number of moles in 34 g of ammonia is 2 moles

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