Question

Calculat number of atom is each of the following A 0.4 mole of nitrogen B 1.6g of sulfur

Answer 1

Answer:

A.2.4088×10^23

B.3.011×10^22

Explanation:

number of atom=

A.0.4mol×6.022×10^23=2.4088×10^23

B.1.6÷32=0.05mol=0.05×6.022×10^23

=3.011×10^22