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Calculate the number of moles of 70.0 g of NaOH. Molar mass of NaOH is 40.0 g/molGroup of answer choices1.75 moles1.50 moles2800 moles0.571 moles

Question

Calculate the number of moles of 70.0 g of NaOH. Molar mass of NaOH is 40.0 g/molGroup of answer choices1.75 moles1.50 moles2800 moles0.571 moles

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Solution

To calculate the number of moles, you use the formula:

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

Given: Mass of NaOH = 70.0 g Molar mass of NaOH = 40.0 g/mol

Substitute the given values into the formula:

Number of moles = 70.0 g / 40.0 g/mol = 1.75 moles

So, the number of moles of NaOH in 70.0 g is 1.75 moles.

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