31. Solving a chemistry problem
Seller: Derkach
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Product description
- A 200 ml volumetric flask contains a mixture of NaH2PO4 and Na2HPO4. The titration of 15 ml of solution in the presence of phenolphthalein required 10.30 ml of NaOH solution (NNaOH = 0.09855), in the presence of methyl orange - 13.70 ml of HCl solution (NHCl = 0.1175). Calculate the masses of NaH2PO4 and Na2HPO4 in the original solution.
Additional information
If the file does not open for you, install the Rar archiver program. Inside the archive, the solution is in WORD format.