A 50mL of 0.50M hydrofluoric acid (Ka = 7.2 x 10^-4) is titrated with a 0.20M
sodium hydroxide solution. What is the pH of the solution when 35mL of base
has been added?
will the solution have a pH less that 7 or more than 7

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. Didn't I show you how to do one like this just a day or so ago. That one had a final solution that was a buffer and used the Henderson-Hasselbalch equation to calculate the pH.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. In fact, I think it was the same problem.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    You have the following acids and their conjugate bases available: Acetic Acid: CH 3COOH/CH3COO-; Ka = 1.8 × 10-5 Carbonic Acid: H2CO3/HCO3-; Ka = 4.2 × 10-7 Hydrofluoric acid: HF/F-; Ka = 7.2 × 10-4 Which of these

  2. chemistry

    The pH of a 0.25 M aqueous solution of hydrofluoric acid, HF, at 25.0 °C is 2.03. What is the value of Ka for HF?

  3. Chemistry

    Sodium carbonate(aq) + hydrofluoric acid(aq) ? What is the formula for the complete chemical equation?


    If a solution of HF (Ka = 6.8*10-4) has a pH of 3.42, calculate the total concentration of hydrofluoric acid.

  1. Chemistry

    Lactic acid, a chemical responsible for muscle fatigue, is a monoprotic acid. When 0.578 g of lactic acid is titrated with 0.206 M NaOH, a volume of 31.11 mL of NaOH is used. What is the molar mass of lactic acid? HA + NaOH > NaA

  2. Chemistry

    25 mL of a 0.10 M solution of the weak acid hydrofluoric acid, HF, (Ka = 7.2 x 10-4) is titrated with a 0.10 M solution of the weak base ammonia, NH3 (Kb = 1.8 x 10-5). Will the pH at the equivalence point be less than 7, equal to

  3. Science

    I had to do a complexation titration to calculate the concentration of aluminium. In this, 24.9274ml of EDTA was titrated against 0.0111129 M Zn standard solution, which took 39.45 ml of the Zn solution for the colour change. Next

  4. Chemistry

    A 25ml solution of 0.5M NaOH is titrated until neutralized into a 50ml sample of HNO3. What was the concentration of the HNO3?

  1. chemistry

    Write the balanced reaction of hydroxide ion with hydrofluoric acid, HF, to form fluoride ion and water. Identify each species as either an acid or a base.

  2. Chem

    Citric acid (H3C6H5O7) is triprotic acid which reacts with NaOH according to the balanced chemical equation shown below what volume of 0.200m Naoh is required to titrate 7.50ml of lemon juice which is 0.245 m in citric acid?

  3. Chemistry

    A solid weak acid is weighed, dissolved in water and diluted to exactly 50.00 ml. 25.00 ml of the solution is taken out and is titrated to a neutral endpoint with 0.10 M NaOH. The titrated portion is then mixed with the remaining

  4. chemistry

    A 25 mL solution of .5M NaOH is titrated until neutralization into a 50mL sample of HCl. What was the concentration of HCl?

View more similar questions or ask a new question.