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Amiraneli [1.4K]
3 years ago
11

Which of the following is most likely to use coal as fuel? Stove Airplane Factory

Chemistry
1 answer:
Lyrx [107]3 years ago
4 0

Answer: factory

Explanation: a stove usually runs on electricity or gas, a plane doesnt use coal but factories do to keep it pumping

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Answer : The equilibrium concentration of H_3O^+ in the solution is, 2.1\times 10^{-3}M

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Initial conc.        c                                 0                0

At eqm.             c-x                                 x                x

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c = 7.0\times 10^{-2}M

K_a=6.3\times 10^{-5}

The expression of dissociation constant of acid is:

K_a=\frac{[H_3O^+][C_6H_5COO^-]}{[C_6H_5COOH]}

K_a=\frac{(x)\times (x)}{(c-x)}

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x=2.1\times 10^{-3}M

Thus, the equilibrium concentration of H_3O^+ in the solution is, 2.1\times 10^{-3}M

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