Multiple Choice
Given that 5.38 × 10^{16} molecules of 1-butene have a mass of 5.00 μg, what is the molar mass of 1-butene?
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2. Atoms & Elements
Calculating Molar Mass
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Given that a sample of an element has a mass of 10.4 grams and contains 0.129 moles, what is the molar mass of the element?
A
134 g/mol
B
1.24 g/mol
C
80.6 g/mol
D
10.4 g/mol
Verified step by step guidance1
Identify the given information: the mass of the sample is 10.4 grams and the amount of substance is 0.129 moles.
Recall the formula for molar mass, which relates mass and moles: \(\text{Molar Mass} = \frac{\text{Mass}}{\text{Moles}}\).
Substitute the given values into the formula: \(\text{Molar Mass} = \frac{10.4\ \text{g}}{0.129\ \text{mol}}\).
Perform the division to find the molar mass in grams per mole (g/mol).
Compare the calculated molar mass with the provided options to confirm the correct answer.
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