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Anna35 [415]
2 years ago
15

PLEASE HELP WITH THESE 3 QUESTIONS

Chemistry
1 answer:
Alenkinab [10]2 years ago
8 0

Answer:

i think this is the answer

Explanation:

C).50 ML

D)8.5 ph

E)weak acid,strong base,basic

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2 years ago
At what temperature will 0.654 moles of helium gas occupy 12.30 liters at 1.95 atmospheres?
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447,25k

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PV=nRT

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now using:

T=\frac{PV}{nR}\\ \\T=\frac{12,3L.1,95atm}{0,654mol.0,082(L.atm/K.mol)}\\ \\T=447,25K

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