What is the pH of a solution made by mixing 25 mL of .050 M HNO3...

What is the pH of a solution made by mixing 25 mL of .050 M HNO₃ into a final volume of 2.0 Liters of water?

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Expert Solution

Intial Final

M1 = 0.05M M2 =

V1 = 25ml V2 = 25+2000 =2025ml

M1V1 = M2V2

M2 = M1V1/V2 = 0.05*25/2025 = 0.000617M

HNO3 -------------> H^+ + NO3^-

0.000617M 0.000617M

[H^+] = [HNO3]

[H+] = 0.000617M

PH = -log[H+]

= -log0.000617 = 3.2097 >>>>>answer

queen_honey_blossom answered 1 year ago

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