Chemistry, 01.07.2019 04:00 brillamontijo
Phenolphthalein has a pka of 9.7 and is colorless in its acid form and pink in its basic form. for ph= 2.2 calculate [in−]/[hin].
Answers: 1
![\frac{[In^-]}{[HIn]}=3.16*10^-^8](/tpl/images/0037/3365/8746b.png)
![pH=pKa+log(\frac{[base]}{[acid]})](/tpl/images/0037/3365/af00c.png)
![2.2=9.7+log(\frac{[In^-]}{[HIn]})](/tpl/images/0037/3365/29929.png)
![2.2-9.7=log(\frac{[In^-]}{[HIn]})](/tpl/images/0037/3365/e1f70.png)
![-7.5=log(\frac{[In^-]}{[HIn]})](/tpl/images/0037/3365/35bd0.png)
![10^-^7^.^5=\frac{[In^-]}{[HIn]}](/tpl/images/0037/3365/063d1.png)
![3.16*10^-^8=\frac{[In^-]}{[HIn]}](/tpl/images/0037/3365/55d27.png)
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Phenolphthalein has a pka of 9.7 and is colorless in its acid form and pink in its basic form. for p...
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