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inysia [295]
3 years ago
9

HELP!!!!!

Chemistry
2 answers:
faltersainse [42]3 years ago
5 0

Answer:

5.17.

Explanation:

<em>∵ [H₃O⁺][OH⁻] = 10⁻¹⁴. </em>

[OH⁻] = 1.5  x 10⁻⁹ M.

∴ [H₃O⁺] = 10⁻¹⁴/[OH⁻] = 10⁻¹⁴/(1.5  x 10⁻⁹ M) = 6.66 × 10⁻⁶ M.

∵ pH = - log[H₃O⁺]

<em>∴ pH = - log(6.66 × 10⁻⁶ M) = 5.17. </em>

Elena-2011 [213]3 years ago
4 0

Answer:

5.18

Explanation:

I hope this helps ;)

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P x V = n x R x T

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P x 73 = 72.57492

P = 72.57492 / 73

P = 1.0 atm

hope this helps!




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