Please help me... It is urgent..
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mukherjeearjun2003:
mass of he is 4
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Answer:
1 MgCl2 is your answer for first one
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1
Answer:
Mgcl2
molecular mass of nitric acid = 1+14+ 16×3= 1+14+48 = 63u
number of moles in he =52/4= 13 moles
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