Question

Commercially available HCl contains 38% HCl by mass. Calculate it's molarity when it's density is 1.19g/ cm^3​

Answer 1

Answer:

answer is 21 ltr

step-by-step explanation:

let a=7x

b=5x

so, the mixture is 7x+5x=12x

when, 9 ltrs drained then

12x-9

then the can is filled with b(9x)

so, atq

12x-9=9x

12x-9x=9

3x=9

x=3

so, a present initially =7*3=21

the answer is 21 litre.