Question

Рассчитайте количество вещества и водорода массой 3г.

Answer 1

N=3/2=1.5 моль
Mr(H2)=2
...............................

Answer 2

Calculating the Amount of Substance of Hydrogen

To calculate the amount of substance of hydrogen with a mass of 3g, we can use the formula:

Amount of substance (n) = Mass (m) / Molar mass (M)

Given that the molar mass of hydrogen (H) is approximately 1g/mol, we can calculate the amount of substance of hydrogen.

Using the given mass of 3g and the molar mass of hydrogen, we can calculate the amount of substance of hydrogen as follows:

Amount of substance (n) = 3g / 1g/mol = 3 mol

Therefore, the amount of substance of hydrogen with a mass of 3g is approximately 3 moles.