Question

1.A 25.0 L solution is made of 0.10 M acid and 0.13 M conjugate base. What mass of HNO₃ (MM = 63.01) in grams can the buffer absorb before one of the components is no longer present?

2. If 147 g of ZnF2 (Ksp=0.0300) is added to water to make a 1.00 L to the solution, what is the [F^​-​] concentration in the solution in molarity?

3. A solution begins with .100M of NaF dissolved in water. What is the concentration of Magnesium ion in the solution, if MgF2 was added in excess? Ksp (MgF2)= 5.2*10^-11

Answer 1

NOTE- you please upload other questions separately.

Questions that are posted on the boards all differ in length and complexity. They often include subparts- like a, b, c, d, i, ii. In order to make the best use of your valuable answering time, please follow the following protocol for questions with many subparts:

• More than 1 question: answer the first question
  • Unless a student explicitly mentions a question to answer- for instance, “answer the third question”. In this case, the question requested should be the one answered.

Your one thumbs up will help me lot. Thanks!