21. Решение задачки по химии №1064

3. Calculate pH:
1) 0.1 N solution of sulfuric acid.
2) formic acid solution 0.46% (density 1 g/cm3).
3) the solution was obtained by mixing 100 ml of 0.1 N ammonia solution with 200 ml of a solution containing 2.14 g of ammonium chloride.

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