Question

V=3моль(H2) Найти m=? Решительнопожалуйстаа

Answer 1

Вы неправильно написали обозначение молей, это не объем(V), а количество вещества(n)
n=m/M(молярную водорода=2)
m=n*M, m=3*2=6 гр.

Answer 2

Finding the Molar Mass of Hydrogen Gas

To find the molar mass (m) of hydrogen gas (H2) when the volume (V) is 3 moles, we can use the formula:

m = (mass of gas) / (number of moles of gas)

The molar mass of hydrogen gas can be calculated using the periodic table, where the atomic mass of hydrogen (H) is approximately 1.008 g/mol.

Calculation

Given: - Volume (V) = 3 moles - Molar mass of hydrogen (H2) = 2 * atomic mass of hydrogen = 2 * 1.008 g/mol

We can calculate the mass of the hydrogen gas using the formula:

mass = number of moles * molar mass

Substituting the given values: mass = 3 moles * (2 * 1.008 g/mol)

Calculating the mass: mass ≈ 6.024 g

Therefore, the molar mass (m) of 3 moles of hydrogen gas is approximately 6.024 grams.