Answer to Question #122678 in Chemistry for ZAHRA

Question

calculate the amount in moles of H2SO4 present in 25.0cm3 of 1.00moldm-3 H2SO4

Answer 1

1 cm³ = 0.001 dm³, so:

25.0 cm³ = 0.025 dm³

Solution:

Molarity is the number of moles of solute per liter of solution, which can be calculated using the following equation:

​Molarity = mol solute / L of solution

Therefore,

mol solute = Moles of H₂SO₄ = Molarity of H₂SO₄ × Volume of solution

Moles of H₂SO₄ = (1.00 mol dm-3) × (0.025 dm3) = 0.025 mol

Answer: The amount of H₂SO₄ is 0.025 moles.