Question

(b) Calculate the mass of the following: (i) 1.2044 x 1024 atoms of chlorine. (ii) 0.5 mole H2SO4 (iii) 0.2 mole of argon atoms. (iv) 3.011 1022 number of o, molecules. please solve the problem​

Answer 1

Explanation:

i) mass of chlorine atoms 1.2044x 10²⁴x35.5/6.022x10²³

= 71g

ii) 1 mole h2so4 = 98g

so 0.5 mole =49g

iii) Ar atomic wt 39.9

0.2 mole = 0.2x39.9g

iv) O2 molecular mass 32

so mass of o2 is (3.01x10²²/6.922x10²³)*32

=32/20=0.16g

Answer 2

Explanation:

mass of chlorine atoms 1.2044x 10²⁴×35.5/6.022×10²³=71g