2 years ago

Question 17 of 25

Chemistry

2 answers:

lesya [120]2 years ago

5 0

Answer: it is Cu(s)

Explanation:

OLga [1]2 years ago

3 0

The answer is B Ni(s)

nickel atom will oxidised to become nickel ion, Ni2+

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: Citric acid, H3C6H5O7, is a triprotic acid. Consider a buffer system comprising H2C6H5O7 - and HC6H5O7 2- ions. What is the ne

olchik [2.2K]

Answer:

The Net reaction is

$H_3C_6H_5O_7 + 0H^- ----> H_2C_6H_5O_7^- +H_2O \ \ \ \ \ \ \ Main \ Reaction$
$H_2C_6H_5O_7^ - + OH^- ----> H_C_6H_5O_7^{ 2-} + H_2O \ \ \ \ Add \ NaOH$
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Explanation:

From the Question we are told that the buffers are

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$H_3C_6H_5O_7 + 0H^- ----> H_2C_6H_5O_7^- +H_2O \ \ \ \ \ \ \ Main \ Reaction$
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