If you have 0.25 moles of sulfuric acid (H2SO4), what is its mass? (2023)

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Question: If you have 0.25 moles of sulfuric acid (H2SO4), what is its mass? (2023)

Options:

Correct Answer: 98 g

Solution:

Molar mass of H2SO4 = 2*1 + 32 + 4*16 = 98 g/mol. Mass = 0.25 moles x 98 g/mol = 24.5 g.

If you have 0.25 moles of sulfuric acid (H2SO4), what is its mass? (2023)

If you have 0.25 moles of sulfuric acid (H2SO4), what is its mass? (2023)

Step 1: Find the molar mass of sulfuric acid (H2SO4).
Step 2: Calculate the molar mass by adding the atomic masses: 2 hydrogen (H) atoms, 1 sulfur (S) atom, and 4 oxygen (O) atoms.
Step 3: The atomic mass of hydrogen is approximately 1 g/mol, sulfur is approximately 32 g/mol, and oxygen is approximately 16 g/mol.
Step 4: Calculate the total mass: (2 * 1) + (1 * 32) + (4 * 16) = 2 + 32 + 64 = 98 g/mol.
Step 5: Use the formula: Mass = moles x molar mass.
Step 6: Substitute the values: Mass = 0.25 moles x 98 g/mol.
Step 7: Calculate the mass: 0.25 x 98 = 24.5 g.

Molar Mass Calculation – Understanding how to calculate the molar mass of a compound by summing the atomic masses of its constituent elements.
Mole to Mass Conversion – Applying the relationship between moles and mass using the formula: mass = moles × molar mass.