Phosphoric acid (H3PO4) is a weak acid naturally found in the body that supports kidney function and also involved in fat storage. It is a weak acid with a Ka value of 6.9×10^-3 at STP. Part i Determine the H+ concentration of a 0.25 M solution of phosphoric acid at STP (assume that the acid is monoacidic). part ii Calculate the pH of the 0.25 M H3PO4 solution at STP. part iii What effect on the pH of the solution would you expect to observe if the temperature of the weak solution was increased. Give a brief explanation for your answer
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Phosphoric acid (H3PO4) is a weak acid naturally found in the body that supports kidney function and also involved in fat storage. It is a weak acid with a Ka value of 6.9×10^-3 at STP.
Part i
Determine the H+ concentration of a 0.25 M solution of phosphoric acid at STP (assume that the acid is monoacidic).
part ii Calculate the pH of the 0.25 M H3PO4 solution at STP.
part iii What effect on the pH of the solution would you expect to observe if the temperature of the weak solution was increased. Give a brief explanation for your answer
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