Question

a) A solution is made by mixing 350 mL of .5 M hydrofluoric acid with 50...

a) A solution is made by mixing 350 mL of .5 M hydrofluoric acid with 50 mL of 1.5 M KOH. Calculate the pH of the solution. (b) to the solution above is added 2.00 grams of sodium fluoride. What is the new pH? (c) to the solution from part (a) you add 75 mL of .5 M HCl. What is the new pH? (d) To the solution from part (a) you add 25 mL of .45 M KF, what is the new pH?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
29. What is the pH of an aqueous solution made by combining 40.03 mL of a...
29. What is the pH of an aqueous solution made by combining 40.03 mL of a 0.4322 M sodium fluoride with 44.86 mL of a 0.3356 M solution of hydrofluoric acid to which 3.619 mL of a 0.0543 M solution of HCl was added?
A)what is the pH of a solution made by mixing 465 ml of .10 M hydrochloric...
A)what is the pH of a solution made by mixing 465 ml of .10 M hydrochloric acid and 285 ml of .15 M sodium hydroxide? B)What is the pH of a buffer solution prepared from 0.21 mol NH3 and .39 mol NH4NO3 dissolved in 1.00L of solution? C) what is the pH in part B if >0.050 mol of Hcl is added? if 0.050 mol of NaOH is added?
a solution that is made by combining 55 mL of 6.0×10−2 M hydrofluoric acid with 125...
a solution that is made by combining 55 mL of 6.0×10−2 M hydrofluoric acid with 125 mL of 0.11 M sodium fluoride
a solution that is made by combining 55 mL of 6.0×10−2 M hydrofluoric acid with 125...
a solution that is made by combining 55 mL of 6.0×10−2 M hydrofluoric acid with 125 mL of 0.12 M sodium fluoride I kept getting around 7.7 for the pH. I found the ml of HF and NaF to be (3.3*10^-3 mol) and (1.5*10^-2) respectively. The total volume to be 0.180L. and pKa value of 3.17 with a Ka value of (6.8*10^-4). The answer given was pH = 3.83 but I can't seem to get the same answer.
A buffer solution is prepared by mixing 15.0 mL of 2.00 M Acetic Acid and 10.0...
A buffer solution is prepared by mixing 15.0 mL of 2.00 M Acetic Acid and 10.0 mL of 1.50 M NaC2H3O2. Determine the pH of the solution after the addition of 0.015 moles HCl (assume there is no change in volume when the HCl is added). Ka HC2H3O2 = 1.80E-5
A buffer is prepared by mixing 50.0 mL of 0.050 M acetic acid and 20.0 mL...
A buffer is prepared by mixing 50.0 mL of 0.050 M acetic acid and 20.0 mL of 0.10 M sodium hydroxide. a) What is the pH? b) How many grams of HCl must be added to 25.0 mL of the buffer to change the pH by 0.07 units?
A buffer solution is made by mixing 0.100 liter each of 0.400 M acetic acid and...
A buffer solution is made by mixing 0.100 liter each of 0.400 M acetic acid and 0.200 M sodium acetate. For acetic acid, Ka=1.8 x 10^-5 a. What is the pH of the buffer? b. Assuming no change in volume, what is the pH of the solution after the addition of 0.0100 moles of KOH molecules are added? (KOH is a strong base in water solution)
1.) An aqueous solution contains 0.23 M hydrofluoric acid. One Liter of this solution could be...
1.) An aqueous solution contains 0.23 M hydrofluoric acid. One Liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) 0.12 mol HClO4 0.23 mol KNO3 0.24 mol HClO4 0.24 mol KF 0.117 mol NaOH 2.) An aqueous solution contains 0.34 M ammonia. One liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as...
The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 35...
The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 35 mL of 0.145 M HCl is
The pH of a solution prepared by mixing 65 mL of 0.183 M KOH and 45...
The pH of a solution prepared by mixing 65 mL of 0.183 M KOH and 45 mL of 0.145 M HCl is ______.