Question

how many moles are present in 40 frames of He ?

a) 10 moles
b) 11 moles
c) 13 moles
d) 12 moles


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Answer 1

Answer:

10 moles

Explanation:

Given weight=40 grams

Molar mass of He=4 grams

NO.OF MOLES=GIVEN WEIGHT/MOLARMASS

=40g/4g

=10moles