3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 250cm...
CHEMISTRY
POST UTME OOU
3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 250cm3 standard flask. 25cm3 of this solution required 40.00cm3 of 0.01M HCl for neutralization. What is the percentage by weight of k2CO3 in the mixture? (k = 39, 0 = 16, C = 12)
- A) 92
- B) 89
- C) 72
- D) 826
Correct Answer: A) 92
Explanation
First, let's find out the number of moles of HCl required for neutralization. Since the concentration of HCl is 0.01M, and the volume used is 40.00 cm
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *