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ZanzabumX [31]
3 years ago
6

Help ASAP

Chemistry
1 answer:
ladessa [460]3 years ago
5 0

Answer:

c

Explanation:

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The pK of acetic acid is pK = 4.76. For a 0.1 M solution of acetic acid at a pH = 4.76 what is the concentration of [H+]?
spin [16.1K]

Answer:

[H+] = 1.74 x 10⁻⁵

Explanation:

By definition pH = -log  [H+]

Therefore, given the pH,  all we have to do is  solve algebraically for  [H+] :

[H+]  = antilog ( -pH ) =  10^-4.76 = 1.74 x 10⁻⁵

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Answer:

\Delta H for the given reaction is -238.7 kJ

Explanation:

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---------------------------------------------------------------------------------------------------

C(graphite)+2H_{2}(g)+\frac{1}{2}O_{2}(g)\rightarrow CH_{3}OH(l)

\Delta H=\Delta H_{1}+\Delta H_{2}+\Delta H_{3}=-238.7 kJ

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A chemical reaction that absorbs energy in the form of heat is described as
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<span> endothermic is the answer


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