Review18 - Review 18 1 Ka Ksp HF CH3COOH H3PO4 H2PO4 6.8 x...

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Review 18 1 K a K sp HF 6.8 x 10 -4 CaCO 3 3.8 x 10 -9 CH 3 COOH 1.8 x 10 -5 PBI 2 6.5 x 10 -9 H 3 PO 4 7.5 x 10 -3 H 2 PO 4 - 6.2 x 10 -8 K b HPO 4 -2 3.6 x 10 -13 CH 3 NH 2 4.4 x 10 -4 HCO 3 4.8 x 10 -11 1. What is the pH of a 0.10 M solution of HF? 2. What is the concentration of methylamine in a 0.065 M aqueous solution of methylamine (CH 3 NH 2 )? What is the pH? 3. Will aqueous solutions of the following salts be acidic, basic, or neutral? a. Na 2 S b. KClO 4 c. Cu(NO 3 ) 2 d. CH 3 CH 2 NH 3 Cl 4. Order from lowest pH to highest: aqueous solutions of HBr, NaF, CaCl 2 , FeCl 3 , and Sr(OH) 2 . 5. An aqueous solution that is 0.100 M in Na 2 CO 3 is prepared. What is the pH of the solution? 6. A 50 mL solution is 100 mM in NH 3. 100 uL of concentrated sulfuric acid (18.4 M) are added. What is the new pH? 7. A buffer is prepared by adding 50 mL of 0.10 M acetic acid to 30.0 mL of 0.10 M NaCH 3 COO. What is the pH of the buffer? What is the pH if 5.0 mL of 0.050 M HNO 3 is added? 8.
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Review18 - Review 18 1 Ka Ksp HF CH3COOH H3PO4 H2PO4 6.8 x...

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