Briannas5022
17.02.2021 •
Chemistry
Consider titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0x10^-6) by 0.200 M HNO3.
Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
0.0 mL
20.0 mL
25.0 mL
40.0 mL
50.0 mL
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Ответ:
This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.