Using equation 18-5 and the pkin value you found, determine the ratio [in-]/[hin] at the ph in the middle of the range you studied (i. e., ph = 6.0 for bromocresol purple, ph = 7.0 for bromothymol blue, and ph = 7.7 for phenol red). show how you accomplished this. draw a conclusion about the relative concentrations of in- and hin at ph values very close to the pkin of the indicator.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

answercontent filtering;