Multiple Choice
Which of the following operations yields the number of moles of solute in a solution?
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2. Atoms & Elements
Mole Concept
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How many moles of chlorine gas (Cl_2) are contained in 9.02 × 10^{23} molecules?
A
0.75 moles
B
0.15 moles
C
1.50 moles
D
6.02 moles
Verified step by step guidance1
Identify the given quantity: 9.02 \times 10^{23} molecules of Cl_2.
Recall Avogadro's number, which is the number of molecules in one mole: 6.02 \times 10^{23} molecules/mole.
Set up the conversion to find moles from molecules using the formula: \(\text{moles} = \frac{\text{number of molecules}}{\text{Avogadro's number}}\).
Substitute the values into the formula: \(\text{moles} = \frac{9.02 \times 10^{23}}{6.02 \times 10^{23}}\).
Simplify the expression to find the number of moles of Cl_2.
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