Question

Найти массу m5 моль H2SO4

Answer 1

m(h2so4)=M*n=M(H2SO4)*n(H2SO4)=98*5=490 г

Answer 2

To find the mass of 5 moles of H2SO4 (sulfuric acid), we'll first need to know its molar mass. The molar mass is the mass of one mole of a substance and is usually expressed in grams per mole (g/mol).

The molar mass of H2SO4 can be calculated by adding the individual molar masses of each element in its chemical formula:

• Hydrogen (H) has a molar mass of approximately 1.01 g/mol.
• Sulfur (S) has a molar mass of approximately 32.06 g/mol.
• Oxygen (O) has a molar mass of approximately 16.00 g/mol.

Now, we can calculate the molar mass of H2SO4: Molar mass of H2SO4 = (2 * Molar mass of H) + Molar mass of S + (4 * Molar mass of O) Molar mass of H2SO4 = (2 * 1.01 g/mol) + 32.06 g/mol + (4 * 16.00 g/mol) Molar mass of H2SO4 = 2.02 g/mol + 32.06 g/mol + 64.00 g/mol Molar mass of H2SO4 = 98.08 g/mol

Now that we have the molar mass of H2SO4, we can calculate the mass of 5 moles: Mass of 5 moles of H2SO4 = 5 moles * Molar mass of H2SO4 Mass of 5 moles of H2SO4 = 5 moles * 98.08 g/mol Mass of 5 moles of H2SO4 = 490.4 g

Therefore, the mass of 5 moles of H2SO4 is approximately 490.4 grams.