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Calculate the number of moles in 7.50 × 10² grams of methanol, CH3OH

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Final answer:

To find the number of moles in 750 grams of methanol, divide the mass by the molar mass of methanol, resulting in approximately 23.4 moles of methanol.

Step-by-step explanation:

To calculate the number of moles of methanol (CH3OH), you first need the molar mass of methanol.

Methanol has a molar mass of approximately 32.04 g/mol (12.01 for carbon, 4x1.01 for hydrogen, and 16.00 for oxygen).

Using the formula:

Number of moles = mass (g) ÷ molar mass (g/mol)

We substitute the given values:

Number of moles = 750 g ÷ 32.04 g/mol

The result is approximately:

Number of moles = 23.4 mol of CH3OH

User Yuriy Alevohin
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