Answer:
The answer is
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Explanation:
The Ka of an acid when given the pH and concentration can be found by
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where
c is the concentration of the acid
From the question
pH = 5.82
c = 0.010 M
Substitute the values into the above formula and solve for Ka
We have
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Multiply through by - 2
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Find antilog of both sides
We have the final answer as
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Hope this helps you
The FDA would have better authority i guess than the manufacturer and it would be safer for the FDA to test it out. Hope it helps
Answer:
The rate of evaporation decreases, or slows down
Explanation:
Answer:
[NaCH₃COO] = 2.26M
Explanation:
17% by mass is a sort of concentration. Gives the information about grams of solute in 100 g of solution. (In this case, 17 g of NaCH₃COO)
Let's determine the volume of solution, by density
Mass of solution / Volume of solution = Solution density
100 g / Volume of solution = 1.09 g/mL
100 g / 1.09 g/mL = 91.7 mL
17 grams of solute is contained in 91.7 mL
Molarity (M) = Mol of solute /L of solution
91.7 mL / 1000 = 0.0917L
17 g / 82 g/m = 0.207 moles
Molariy = 0.207 moles / 0.0917L → 2.26M
