| Sections | |||
|---|---|---|---|
| Intro to Buffers | 20 mins | 0 completed | Learn |
| Henderson-Hasselbalch Equation | 17 mins | 0 completed | Learn |
| Intro to Acid-Base Titration Curves | 13 mins | 0 completed | Learn |
| Strong Titrate-Strong Titrant Curves | 9 mins | 0 completed | Learn |
| Weak Titrate-Strong Titrant Curves | 15 mins | 0 completed | Learn |
| Acid-Base Indicators | 8 mins | 0 completed | Learn |
| Titrations: Weak Acid-Strong Base | 39 mins | 0 completed | Learn |
| Titrations: Weak Base-Strong Acid | 40 mins | 0 completed | Learn |
| Titrations: Strong Acid-Strong Base | 12 mins | 0 completed | Learn |
| Titrations: Diprotic & Polyprotic Buffers | 32 mins | 0 completed | Learn |
| Solubility Product Constant: Ksp | 18 mins | 0 completed | Learn |
| Ksp: Common Ion Effect | 18 mins | 0 completed | Learn |
| Precipitation: Ksp vs Q | 12 mins | 0 completed | Learn |
| Selective Precipitation | 9 mins | 0 completed | Learn |
| Complex Ions: Formation Constant | 18 mins | 0 completed | Learn |
Problem
A 2.591 g sample is dissolved in 50.00 mL of 1.045 M HCl solution. The solution needed 12.39 mL of 1.293 M KOH to neutralize the excess acid. If magnesium carbonate is the only compound that reacts with HCl, what is its percentage in the sample?
Solution
Practice Problems
The titration curve shown below was obtained when a 20.0 mL sample of monoprotic acid was titrated against a solution of 0.15 M NaOH solution.A. Calculate the initial concentration of the monoprotic acid in mol/L units.B. Calculate the dissociation constant (Ka) for the monoprotic acid.
The titration curve shown below was obtained when a 10.0 mL sample of a weak base was titration against a 0.150 M HCl solution.A. Calculate the initial molarity of the weak base solution.B. What is the value of pKb for the weak base?
The following titration curve was obtained when a 25.00 mL sample of HCl solution was titrated against 0.200 M NaOH solution. Calculate the molarity of the HCl solution.
Identify the equivalence point pH for each of the following titrations:1) Strong acid-strong base2) Strong acid-weak base3) Weak acid-strong basepH ranges:A) pH = 7B) pH < 7C) pH > 7
2.25 g of a monoprotic weak acid sodium bicarbonate (MW = 84.0 g/mol) was dissolved into water to make a homogenous solution that was titrated against a 0.800 M solution of potassium hydroxide (KOH). Calculate the volume (in mL) of the KOH solution required to reach the equivalence point?Show More
