Question

a solution contains NAHCO3 and NA2CO3 10 ml of solution require 2.5 ml of 0.1 molar H2SO4 for neutralisation using phenol phthalate as an indicator. methyl orange is added when further 2.5 ml of 0.2 ml H2SO4 is require. calculate the mass of Na2CO3 and NaHCO3 in the mixture.

Answer 1

☆☆☆☆☆hii mate☆☆☆☆☆
HERE IS YOUR ANSWER ⤴ ⤴ ⤴ ⤴

answer are 4.2 g/l and 5.3g/l

may it help you.

Answer 2

Answer:

Required mass is 5.3 g

Explanation:

Let it mass be in gm

Meq of Na₂Co₃ is 1

Meq of NaHCo₃ is 0.5

NaHCo₃,

$\frac{a}{84} \times 1000 = 0.5$

$a = \frac{42}{1000} = 0.042g$

$1ml = \frac{0.042}{10}$

$100 \: ml = \frac{0.042}{10 } \times 1000 = 4.2g {l}^{ - 1}$

Again,

$\frac{b}{53} \times 1000 = 1 \\ b = \frac{53}{100}$

0.053g→10ml

$1ml = \frac{0.053}{10} \times 1000 = 5.3g$