Answer to Question #340175 in Chemistry for nique

Question

how many grams would be contained in 3.49 x 10^80 molecules of H2SO4?

Answer 1

Solution:

One mole of any substance contains 6.02×10²³ atoms/molecules.

Therefore,

Moles of H₂SO₄ = (3.49×10⁸⁰ molecules) × (1 mol / 6.02×10²³ molecules) = 5.797×10⁵⁶ mol H₂SO₄

The molar mass of H₂SO₄ is 98.079 g/mol

Therefore,

Mass of H₂SO₄ = (5.797×10⁵⁶ mol H₂SO₄) × (98.079 g H₂SO₄ / 1 mol H₂SO₄) = 5.686×10⁵⁸ g H₂SO₄

Mass of H₂SO₄ = 5.686×10⁵⁸ g

Answer: 5.686×10⁵⁸ grams of H₂SO₄