An acid with a pKa of 4.73 has a concentration of 0.100 M. What is the...

An acid with a pKa of 4.73 has a concentration of 0.100 M. What is the pH of the acid? Give to two decimal places.

The pH of a 0.100 M solution of a weak acid is 3.15. What is the pKa of the acid? Give to two decimal places.

Expert Solution

PH = 1/2Pka -1/2logc

= 1/2*4.73-1/2log0.1

= 2.365-1/2*-1

= 2.365+1/2

= 2.365 +0.5

= 2.865 >>>>>>>>>answer

2.

PH = 1/2 Pka -1/2logC

3.15 = 1/2Pka -1/2log0.1

3.15 = 1/2Pka+ 1/2

1/2Pka = 3.15-0.5

1/2Pka = 2.65

PKa = 5.3 >>>>>>>.answer

queen_honey_blossom answered 2 years ago

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