Need help with 3, 4, 5a & 5b
For each of the following salts, circle the word ("acidic", "neutral", or "basic") that describes the aqueous solution of that salt. What is the pH of a solution that is 0.000425 M HI and 0.000425 M Ca(OH)_z? The K_a of propanoic add (CH_3CH_2COOH) is 1.34 x 10^-5. What is the pH of a solution that is 0.0700 M propanoic acid and 0.0500 M sulfuric acid? What is the pH of a solution that is 0.0700 M propanoic acid and 0.0050 M barium hydroxide?
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Related questions
1. is the pH of a 0.206 M aqueous solution of potassium fluoride, KF? (Ka for HF = 7.2Ã10-4)
pH =
2. Consider the acid-base nature of the salt [C2H5NH3]CN, when it is dissolved in water.
(a) What are the acid-base properties of the cation, C2H5NH3+? _________acidic, basic, or neutral
(b) What are the acid-base properties of the anion, CN-? _________acidic, basic, or neutral
(c) Would an aqueous solution of [C2H5NH3]CN be acidic, basic or neutral? _________acidic, basic, or neutral
3. Consider the acid-base nature of calcium cyanide, Ca(CN)2, when it is dissolved in water.
(a) What are the acid-base properties of the cation? _________acidic, basic, or neutral
(b) What are the acid-base properties of the anion? _________acidic, basic, or neutral
(c) Would an aqueous solution of calcium cyanide be acidic, basic or neutral? _________acidic, basic, or neutral
4. Write the net ionic equation for the equilibrium that is established when barium hypochlorite is dissolved in water.
_________ | + | H2O = __________ | + | _____________ |
---|
This solution is | _________acidic, basic, or neutral. |
5. Write the net ionic equation for the equilibrium that is established when potassium nitrite is dissolved in water.
_________ | + | H2O = __________ | + | ____________ |
---|
This solution is | _________acidic, basic, or neutral. |
6. What is the pH of a 0.155 M aqueous solution of sodium cyanide, NaCN?
pH =
This solution is _________acidic, basic, or neutral.
7. What is the pH of a 0.119 M aqueous solution of ammonium chloride, NH4Cl ?
pH =
This solution is _________acidic, basic, or neutral.
8. The acid ionization constant for Cu(H2O)62+(aq) is 1.0Ã10-7. Calculate the pH of a 0.0337 M solution of Cu(NO3)2.
pH =