What is the mass of 0.75 moles of sulfuric acid (H2SO4)?

Practice Questions

Q1
What is the mass of 0.75 moles of sulfuric acid (H2SO4)?
  1. 75 g
  2. 98 g
  3. 147 g
  4. 50 g

Questions & Step-by-Step Solutions

What is the mass of 0.75 moles of sulfuric acid (H2SO4)?
  • Step 1: Identify the chemical formula of sulfuric acid, which is H2SO4.
  • Step 2: Calculate the molar mass of H2SO4 by adding the atomic masses of its elements: 2 hydrogen (H), 1 sulfur (S), and 4 oxygen (O).
  • Step 3: The atomic mass of hydrogen (H) is approximately 1 g/mol, sulfur (S) is approximately 32 g/mol, and oxygen (O) is approximately 16 g/mol.
  • Step 4: Calculate the total mass: 2*1 (for H) + 32 (for S) + 4*16 (for O) = 2 + 32 + 64 = 98 g/mol.
  • Step 5: Use the formula for mass: Mass = moles x molar mass.
  • Step 6: Substitute the values: Mass = 0.75 moles x 98 g/mol.
  • Step 7: Calculate the mass: 0.75 x 98 = 73.5 g.
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