Question

What is mass of sodium acetate (CH,COONa)
required to make 200 ml of 0.245 molar aqueous
solution? (Molar mass of CH,COONa = 82 g mol-1)
[NCERT Pg. 23]
(1) 3 g
(2) 4 g
(3) 5g
(4) 6 g​

Answer 1

Answer:(1) 3g

Explanation:

0.245 = n/0.2L

n = 0.245×0.2

Wt = 0.049× molar mass

= 0.049×62g

= 3.03g