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Chemistry
/ Weak Bases

- Solutions 26

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minutes of videosFor each of the sets of compounds or ions given below, circle the most __basic__ species and explain your reasoning.

1. PO_{4}^{3-} HPO_{4}^{2-} H_{2}PO_{4 }^{-}

2. ClO ^{-} ClO_{2}^{-} CIO _{3}^{-}

3. HBrO HClO HClO _{2}

Answer the following questions. i) Calculate the pH of a 0.20 M solution of ...

Calculate the pH of a 0.10 M solution of hydrazine, N2H4. Kb for hydrazine is ...

Calculate the percent ionization (protonation) of a 0.342 M solution of an unk...

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Calculate the [OH−] concentration in a 0.5 M solution of potassium fluoride (K...

An unknown base, A-, with an initial concentration of 0.330 M has a percent io...

An unknown weak base has an initial concentration of 0.23 M. What is the pH of...

When ammonium chloride is added to NH 3(aq), 1. the Kb increases. 2. the pH...

The pH of 0.1 M C 4H9NH2(aq) (butylamine) aqueous solution was measured to be ...

Determine the pH of a 0.188 M NH 3 solution at 25°C. The Kb of NH3 is 1.76 x 1...

Which of the following is the correct K b expression for the reaction below: B...

What is the pH of a 0.050 M triethylamine, (C 2H5)3N, solution? Kb for triethy...

Calculate the pH of a 0.021 M NaCN solution. Ka of HCN = 4.9 x 10 -10 A) 1.68...

What mass of sodium nitrite must be added to 350.0 mL of water to give a solut...

Answer the following questions dealing with the weak base ammonia. A. Ammoni...

What is the pH of a 0.23 M pyridine (C 5H5N) solution? The base dissociation c...

For each of the sets of compounds or ions given below, circle the most basic s...

A 0.80 M solution of an unknown base has pOH of 3.50. What is the pKb? a) le...

Determine the pH of a 0.100 M solution of NaBrO where K a (HBrO) = 2.8 X 10 -...

Given the concentration of a weak base solution and a K b value for the weak b...

Calculate the pH of 0.250 M LiF. The Ka of HF is 3.5 x 10 -4. ...

An unknown weak base has an initial concentration of 0.320 M with a pOH of 9.0...

Calculate the pH of 0.030 M NaNO 2. The Ka of HNO2 is 4.6 x 10 -4. ...

Calculate the pH of 0.010 M sodium hypochlorite, NaClO, given that Ka = 3.0 x...

What is the pH of a 0.25 M solution of KCOOH? A. 0.60 B. 4.35 C. 5.43 D. ...