3.A 50mg sample of limestone was cautiously dissolved in 1:1 HCL solution on a hot plate. After the sample was completely dissolved, it was allowed to cool to room temperature. The solution was then treated with 20% triethanolamine, and its pH is buffere to 12 using 20% KOH solution. Calcein was added as an indicator and the solution was titrated with 0.0504 M EDTA solution to a salmon pink endpoint. The burette reading reached 8.90 mL. calculate the percentage of the CaO content of the limestone sample.
Answers
Answered by
0
Answer:
the container of 20% solutions for me pink clutch bag indicator of light
Similar questions