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USPshnik [31]
3 years ago
15

Use the data in the simulation to find the Ka value of HF, hydrofluoric acid

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0
We need to find the Ka value of HF. First, set up the balanced chemical equation:

HF ===> H+ + F-

The formula for the Ka value of an acid is

Ka = [concentration of products] / [concentration of reactants]

Ka = [H+] [F-} / [HF]

So if we are given the concentration of the products and reactants, we will be able to solve for the Ka value of HF. 
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Answer:

Explanation:

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b) The gram-formula mass of sodium bicarbonate is 84.006 g/mol, meaning that 2.36/84.006 = 0.028 moles were consumed. Thus, this means that in theory, 0.014 moles of carbonic acid should have been produced, which would have a mass of (0.014)(62.024)=0.868 grams. Thus, the percentage yield is (0.79)/(0.868) * 100 = 91%

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2 years ago
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3 years ago
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Answer:

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