1. How many grams (g) of formic acid (HCHO2) would you need to make a 555...

Question

Question

1. How many grams (g) of formic acid (HCHO2) would you need to make a 555 mL solution with a pH of 2.25?

2. Determine the pH of a 1.50 M sodium Cyanide (KCN) solution? -- be sure to show the 5% check!

3. At what pH will a 0.00201 M FeCl2 solution begin precipitating Fe(OH)2?

Please show all the steps i am very confused!!

Answer 1

Answer #1

1)

pH of the solution 2.25 -log[H20* но1-10-2 pH _ = - 5.62x103 M >HCOO HO + H,о НСООН 1(м): C 0 0 c(м): x x E(M) C-x From the p

Answer 2

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