Grade 12Physical Chemistry
A solution contained Na 2CO3and NaHCO 3, 25 mL of the solution required 5 mL of N/10 HCl for neutralization using phenolphthalein as an indicator. Addition of methyl orange required a further 15 mL of the acid for neutralization. The amount of Na 2CO3present in the solution is - 21.2 g
- 2.12 g
- 0.212 g
- 4.24 g
The answer given is 3) 0.212 g .Please explain why!
A solution contained Na 2CO3and NaHCO 3, 25 mL of the solution required 5 mL of N/10 HCl for neutralization using phenolphthalein as an indicator. Addition of methyl orange required a further 15 mL of the acid for neutralization. The amount of Na 2CO3present in the solution is
- 21.2 g
- 2.12 g
- 0.212 g
- 4.24 g
The answer given is 3) 0.212 g .
Please explain why!
