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polet [3.4K]
3 years ago
7

PLEASE HELP 16. (4 points) Sodium reacts with oxygen to produce sodium oxide as described by the balanced equation below. If 54.

1g of sodium reacts with excess oxygen gas to produce 61.8g of sodium oxide, what is the percent yield? Show all work. (hint: be sure to calculate theoretical yield first)
4Na + O2 --> 2Na2O
Chemistry
1 answer:
never [62]3 years ago
4 0
Percent yield of the equation at above condidtions will be 42.4%
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Explanation:

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Which solute would be more effective at lowering the freezing point of water: MgCl2 and KNO3? Explain.
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Answer:

AlCl₃.

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The depression in freezing point (ΔTf) can be calculated using the relation:

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i for KBr = no. of particles produced when the substance is dissolved/no. of original particle = 2/1 = 2.

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