Question

.
Calculate the number of atoms in each
of the following (Given : Atomic mass
of Ca= 40 u).
a. 80u of calcium
b. 80 g of calcium​

Answer 1

Explanation:

atomic mass is double of atomic number...

Answer 2

Answer:

(b,.)

40g ........6.022×10^23 atoms of Ca

80g......... 2× 6.022×10^23 atom

(a). 40u......... 1 Ca atom

80u ...........2Ca atom