Asked by che,
Methyl violet is an indicator that changes color over a range from pH=0 to pH=1.6. What is the Ka of methyl violet?
Answers
Answered by
DrBob222
The average of (0 + 1.6/2) = 0.8; therefore,
pKa = 0.8
pKa = 0.8
Answered by
julian
u forgot to convert it to Pka .. its Ka value not Pka .. it should be 0.16 which is wrong .. i don't knw y ..
Answered by
DrBob222
No, I didn't forget to convert it. Surely you can calculate Ka if you have the pKa. And pKa of 0.8 is correct. You may not have the correct number of significant figures or you may not have rounded properly but I stand by my 0.8 = pKa.
Answered by
Hector
Nick Hoins and Demi Higgins PDA way too much in school!!!
Answered by
Anonymous
hector.. that is unnecessary and inappropriate. glad to know we make it on a homework help site.
Answered by
ssss
dr bob you are wrong.
You got the correct pka value, but you need to take the anti log of that value to get Ka.
Answer is 0.158
You got the correct pka value, but you need to take the anti log of that value to get Ka.
Answer is 0.158
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