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Hitman42 [59]
3 years ago
14

Calculate the pH of a solution on mixing 0.1 M (50 mL) Ch3cooh and 0.1M(50 mL) NaohKa= 0.00005​

Chemistry
1 answer:
Margaret [11]3 years ago
6 0

Answer:

here

Explanation:

Ka=Cx^2/1-x

Ka =1.8 x 10^-5

C = 0.1

If we consider x is negligible ie., x~0

Then x=(Ka/c)^0.5

={1.8 x 10^-5/0.1)^0.5 =0.01342

So concetration of H+ ion =Cx

=0.1 x 0.01342 =0.001342

pH=- log(0.001342) =2.87

However it is only an approximate method. Without using approximation, if we solve equation

Ka =Cx^2/1-x , for value of 'x', where C=0.1 then

We get x = 0.01273

So concetration of H+ ion = Cx

=0.1 x 0.01273 =0.001273

pH = - log (0.001273)

= 2.89.

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forsale [732]

Answer: Amylose is a form of starch which has only α-1,4-links bonds glucose units.

Explanation:

Amylose is a polysaccharide made up of α(1-4) bound glucose molecules. The carbon atoms on glucose are numbered, starting at the aldehyde (C=O) carbon, so, in amylose, the 1-carbon on one glucose molecule is linked to the 4-carbon on the next glucose molecule.

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3 years ago
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babunello [35]

Answer:

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Explanation:

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8 0
3 years ago
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How long is 5 half lives if the half life is 2.6 hours? Remember to round to the correct number of significant figures and use u
Dmitry [639]

Answer:

\Delta t = 13\,h

Explanation:

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3 0
3 years ago
A. 1720 kJ<br> B. 125.6 kJ<br> C. 3440 kJ<br> D. 4730 kJ
Feliz [49]

Answer:

Q = 3440Kj

Explanation:

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