Question

calculate the molecular masses of cacl2,k2so4 and caO​

Answer 1

MOLECULAR MASS OF FOLLOWING;

ANSWER

MOLECULAR OF A COMPUND OR MIXTURE =>. SUM OF ATOMIC MASS OF IT'S CONSTITUENT PARTS.

1. CACL2

THEN , MOLECULAR MASS OF CA(CL)2 =>. AT. MASS OF CA(CALCIUM) + AT. MASS OF CL(CHLORINE)

MOLECULAR MASS OF CA(CL)2MOLECULAR MASS =>. 40 +35 × 2

=>. 40 + 70

MOLECULAR MASS OF CA(CL)2 =>.110 g/mol

2. K2 SO4

MOLECULAR MASS OF K2 SO4 =>. AT. MASS OF K × 2 + AT. MASS OF S + AT. MASS OF O × 4

=>. 40 × 2 + 32 + 16 × 4

MOLECULAR MASS OF K2 SO4 =>. 80 + 32 + 56

MOLECULAR MASS OF K2 SO4 =>. 176 g/mol

3 CA O

MOLECULAR MASS OF CAO => AT. MASS OF CA + AT. MASS OF O

=> 40 + 16

MOLECULAR MASS OF K2 SO4 =>. 56 g/ mol

hope it helps you friend,