Answer to Question #192428 in General Chemistry for Aich80

Question #192428

What is the pH when 15.0 g of the strong nitric acid (HNO3, molar mass= 63.02 g/mole) is added to 825 mL of total solution?


Solution:


1
Expert's answer
2021-05-14T02:35:08-0400

Solution.

"\\lbrack HNO_3\\rbrack=15.0g\\sdot\\dfrac{mol}{63.02g}\\sdot\\dfrac{1}{0.825L}=0.285M;"

"HNO_3(aq)\\to H^+(aq)+NO_3^-(aq);"

"\\lbrack H^+\\rbrack=\\lbrack HNO_3\\rbrack=0.285M."

"pH=-lg\\lbrack H^+\\rbrack=-lg0.285=0.55."

Answer: "pH=0.55."




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