Question

How many moles of zinc are there in 45.9g of zinc

Answer 1

Here's your answer mate

Formula : moles =Given mass /molar mass (W/M)

or n= W/M

According to the question

n = ?

given mass ( W ) = 45.9 g

molar mass (M) = 65.3 u or amu

n = 45.9 / 65.3

n= 0.70 moles .

Hope it helps you. ..