A solution contains 180 g of glucose and 162 g of water. What is the mole fraction of glucose?
In order to find the mole fraction of glucose in this solution, you need to know
Your sample of glucose will thus contain
The total number of moles present in this solution will be
Now, the mole fraction of glucose is equal to the number of moles of glucose divided by the total number of moles present in solution.
In your case, this is equal to
The answer is rounded to two sig figs, the number of sig figs you have for the mass of glucose.
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Mole fraction of glucose = moles of glucose / total moles in solution Moles of glucose = 1 mol Moles of water = 9 mol Total moles in solution = 10 mol Mole fraction of glucose = 1/10 = 0.1
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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