Question

Рассчитайте относительную молекулярную массу для следующих веществ: Н2S, КМn04, СuО.​

Answer 1

Ответ:

Объяснение:

Mr(H2S) = 1*2 + 32 = 34

Mr(KMnO4) = 39 + 55 + 16*4 =158

Mr(CuO) = 64 + 16 = 80

Answer 2

Calculation of Relative Molecular Mass

To calculate the relative molecular mass (also known as the molecular weight) of a substance, we need to consider the atomic masses of the elements present in the molecule and their respective stoichiometric coefficients.

Let's calculate the relative molecular mass for the following substances:

1. Hydrogen sulfide (H2S): - Hydrogen (H) atomic mass = 1 g/mol - Sulfur (S) atomic mass = 32.07 g/mol - The stoichiometric coefficient for hydrogen is 2, and for sulfur,