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sammy [17]
3 years ago
12

Select the correct answer.

Chemistry
1 answer:
lara31 [8.8K]3 years ago
6 0

Yo sup??

number of protons=number of electrons =8

but this is the condition when the molecule is neutral

since it has a +3 charge now therefore no of electron is

=8-3

=5

The correct answer is option B

Hope this helps

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                                         pH  =  pKa  +  log [A⁻] / [HA]   -------- (1)

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                                         pKa  =  -log 1.37 × 10⁻⁴

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Putting value of pKa and pH in eq.1,

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                   log [lactate] / [lactic acid]  =  4.29 - 3.863

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Taking Anti log,

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Result:

           2.673 M  lactate salt when mixed with 1 M Lactic acid produces a buffer of pH = 4.29.

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