How many atoms are present in 354.22 g of cl2

a) 3.0076 x 1024 atoms

b) 4.9958 atoms

c) 6.0152 x 1024 atoms

d) 1.5119 x 1028 atoms

Question

Chemistry

Alisa Hunt

13 December, 21:52

How many atoms are present in 354.22 g of cl2

a) 3.0076 x 1024 atoms

b) 4.9958 atoms

c) 6.0152 x 1024 atoms

d) 1.5119 x 1028 atoms

+3

Answers (1)

Know the Answer?

Jovanny Hays · Answer 1

a) 3.0076 E24 atoms

Explanation:

mol ≡ 6.022 E23 atoms

∴ mass Cl2 = 354.22 g

∴ molar mass Cl2 = 70.906 g/mol

⇒ mol Cl2 = (354.22 g) * (mol/70.906 g) = 4.9956 mol

⇒ atoms Cl2 = (4.9956 mol) * (6.022 E23 atoms/mol)

⇒ atoms Cl2 = 3.008 E24 atoms

How many atoms are present in 354.22 g of cl2a) 3.0076 x 1024 atomsb) 4.9958 atomsc) 6.0152 x 1024 atomsd) 1.5119 x 1028 atoms

How many atoms are present in 354.22 g of cl2

a) 3.0076 x 1024 atoms

b) 4.9958 atoms

c) 6.0152 x 1024 atoms

d) 1.5119 x 1028 atoms