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Solution (1)
Step 1: Calculate the molar mass of CCl₄.
molar mass = (12.01 g/mol × 1) + (35.45 g/mol × 4)
molar mass = 153.8 g/mol
Step 2: Calculate the number of moles of CCl₄.
[tex]\text{moles of CCl₄ = 50 g CCl₄} × \frac{\text{1 mol CCl₄}}{\text{153.8 g CCl₄}}[/tex]
[tex]\boxed{\text{moles of CCl₄ = 0.325 mol}}[/tex]
Solution (2)
Step 1: Calculate the molar mass of H₂SO₄.
molar mass = (1.008 g/mol × 2) + (32.07 g/mol × 1) + (16.00 g/mol × 4)
molar mass = 98.09 g/mol
Step 2: Calculate the number of molecules of H₂SO₄.
[tex]\text{number of H₂SO₄ molecules = 25 g H₂SO₄} × \frac{\text{1 mol H₂SO₄}}{\text{98.09 g H₂SO₄}} × \frac{\text{6.022 × 10²³ H₂SO₄ molecules}}{\text{1 mol H₂SO₄}}[/tex]
[tex]\boxed{\text{number of H₂SO₄ molecules = 1.53 × 10²³ molecules}}[/tex]
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