Question

M (Mgo )=8г найти (MgSo4)

Answer 1

Дано:
m (MgO) = 8г

Найти:
m (MgSO4) - ?

Решение:
MgO + H2SO4 = MgSO4 + H2O

n (MgO) = m/M = 8 / 40 = 0.2 моль

n (MgSO4) = n (MgO) = 0.2 моль (по уравнению)

m (MgSO4) = n * M = 0.2 * 120 = 24г

Ответ: m (MgSO4) = 24г

Answer 2

To find the molar mass of magnesium sulfate (MgSO4), you need to sum up the molar masses of its constituent elements: magnesium (Mg), sulfur (S), and oxygen (O).

The molar mass of magnesium (Mg) is approximately 24.305 g/mol. The molar mass of sulfur (S) is approximately 32.06 g/mol. The molar mass of oxygen (O) is approximately 16.00 g/mol.

Now, to calculate the molar mass of magnesium sulfate (MgSO4):

Molar mass of MgSO4 = Molar mass of Mg + Molar mass of S + 4 * Molar mass of O Molar mass of MgSO4 = 24.305 g/mol + 32.06 g/mol + 4 * 16.00 g/mol

Molar mass of MgSO4 ≈ 24.305 g/mol + 32.06 g/mol + 64.00 g/mol Molar mass of MgSO4 ≈ 120.365 g/mol

So, the molar mass of magnesium sulfate (MgSO4) is approximately 120.365 g/mol.