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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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Determine the hydroxide ion concentration in<br> a solution that is 0.028 M NaOH.
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Suppose a solution is prepared by dissolving 15.0 g NaOH in 0.150 L of 0.250 M nitric acid. What is the final concentration of O
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2.25 M is the final concentration of hydroxide ions ions in the solution after the reaction has gone to completion.

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Volume of the nitric solution = 0.150 L

Moles of nitric acid = n

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Moles of NaOH left unreacted  in the solution =

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NaOH(aq)\rightarrow Na^+(aq)+OH^-(aq)

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Then 0.3375 moles of NaOH will give :

1\times 0.3375 moles=0.3375 mol of hydroxide ion

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=\frac{0.3375 mol}{0.150 L}=2.25 M

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