Question

calculate the number of moles for 60 g of helium (Z = 44)
PLEASE answer now and show the full calculation.

Answer 1

given mass of He (m) = 60 g
molar mass of He (M) = 4 g
so number of moles in 60 g of helium = m /M
n = 60/4
n = 15
therefore number of moles in 60 g of He = 15 moles..
i hope it helps............

Answer 2

no. of moles= given mass/molar mass= 60/4 = 15