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MakcuM [25]
3 years ago
9

Last science question!! Thank you all for the help!

Chemistry
1 answer:
AlladinOne [14]3 years ago
5 0

Answer 11 moles of O2 and 10 moles of H2O

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Find the ph of of 100 ml of an aqueous 0.43m baoh2 solution
denpristay [2]
Answer is: pH of barium hydroxide is 13.935.
Chemical dissociation of barium hydroxide in water:
Ba(OH)₂(aq) → Ba²⁺(aq) + 2OH⁻(aq).
c(Ba(OH)₂) = 0.43 M.
V(Ba(OH)₂) = 100 mL ÷ 1000 mL/L = 0.1 L.
n(Ba(OH)₂) = 0.43 mol/L · 0.1 L.
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n(OH⁻) = 0.086 mol.
c(OH⁻) = 0.86 mol/L.
pOH = -logc(OH⁻).
pOH = 0.065.
pH = 14 - 0.065 = 13.935.
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2 years ago
Which of the following methods will usually cause a reaction to speed up?
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Reducing the concentration of reactants
5 0
2 years ago
Answer what you can please. The most accurate will get brainliest. High rating and Many thanks.
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The correct answer for #8 is:

C.  The original pattern of the light is distorted.

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