Question

D. What is the number of moles of beryllium atoms in 36 g of Be

a. 0.25mol b. 0.237 moles
c. 4.0 moles
d. 3.66 moles

Answer 1

4.0 moles

Step-by-step explanation:

Given mass of Be = 36 g

To find : Number of moles of Be

Formula

Number of moles = Given mass/Molar mass

Note

Molar mass of Be = 4 g/mol

Number of moles of Be

= 36/4

= 4 moles

Hence

4.0 moles is the number of moles of beryllium atoms in 36 g of Be.