Solving a chemistry problem

Sold 0
Refunds 0
Good feedbacks 0
Bad feedbacks 0

2. What mass of a substance containing 90% Na2CO3 and indifferent impurities must be taken in order to use 20.00 ml of 0.1 M HCl for its titration with methyl orange?
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.