Question

please answer fast

calculate the percentage composition of ca in the following compunds
(ca=40,cl=35.5,n=14,0=16)
i)calcium chloride
ii) calcium nitrate

please explaint he answer

Answer 1

MARK ME BRAINLIEST

MARK ME BRAINLIEST

Answer 2

Answer:

I) Molar mass of Calcium Chloride=40+35.5*2

=40+71

=111g/mol

Percentage composition of Ca=40/111*100

=0.36*100

=36 percent

II) Molar mass of Calcium nitrate=40+(14+16*3)*2

=40+62*2

=40+124

=164g/mol

Percentage composition of Ca=40/164*100

=0.24*100

=24 percent

Hope it will help you..

Mark the brainliest