Question

If a molar mass of Ca is 40gmol-1. Find the number of calcium moles in 200g of calcium

Answer 1

Answer:

$\huge\boxed{\sf n = 5\ moles}$

Explanation:

Given Data:

Mass in grams = m = 200 g

Molar mass = M = 40 g/mol

Required:

No. of moles = n = ?

Formula:

$\displaystyle n = \frac{m}{M}$

Solution:

n = 200 / 40

n = 5 moles

$\rule[225]{225}{2}$

Hope this helped!

~AH1807