135. Solving a chemistry problem
Seller: Derkach
Price: 1.18 USD
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Product description
- Calculate the pH of the solution obtained by mixing:
- 50 ml 0.1 M KH2PO4 and 25 ml 0.2 M K2HPO4; 2) 30 ml 0.1 M Na2CO3 and 15 ml 0.1 M NaHCO3.