Question

N(О2)=4 мольнайти m(o2)-?​

Answer 1

Ответ:

128 г

Объяснение:

m = n * M

m(O2) = 4 * 32 = 128 г

Answer 2

To find the mass of oxygen (O2) when the number of moles (n) is given, you need to know the molar mass of oxygen, which is approximately 32 g/mol.

Given: Number of moles of O2 (n) = 4 mol

To calculate the mass of O2 (m(O2)), you can use the formula:

m(O2) = n * M

where: m(O2) is the mass of O2 n is the number of moles of O2 M is the molar mass of O2

Plugging in the values:

m(O2) = 4 mol * 32 g/mol = 128 g

Therefore, the mass of O2 when there are 4 moles of it is 128 grams.