Solving equilibrium problem to calculate the ph

Assignment Help Chemistry

Reference no: EM13112112

1- Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution:a solution that is 0.165M in HC 2 H 3 O 2 and 0.120M in KC 2 H 3 O 2. Express your answer using two decimal places.

2- A buffer contains significant amounts of ammonia and ammonium chloride.Write an equation showing how this buffer neutralizes added acid (HI). Express your answer as a chemical equation.

3- A buffer contains significant amounts of ammonia and ammonium chloride. Write an equation showing how this buffer neutralizes added base (CsOH). Express your answer as a chemical equation.

4- Determine whether mixing each pair of solutions results in a buffer.
75.0 mL of 0.10 MHF ; 55.0 mL of 0.15 MNaF
150.0 mL of 0.10 MHF ; 135.0 mL of 0.175 MHCl
150.0 mL of 0.10 MHF ; 135.0 mL of 0.175 MHCl

5- A 1.0-L buffer solution is 0.105M in HNO 2 and 0.145M in NaNO 2 . Determine the concentrations of HNO 2 and NaNO 2 after addition of 1.4g HCl .

Reference no: EM13112112

Questions Cloud

Statistics-hypothesis test on population proportion : During a meeting, one hospital administrator indicated that 70% of the geriatric patients are males. What is the sample proportion of male patients?

Explain the ecology and natural history : Explain the ecology and natural history about the Brazilain Wandering Spiders. Also what is its economic importance or evolutionary significance? Please put in your own words or cite the sources.

Standardized test statistic : Find the standardized test statistic to test the claim that mean1 = mean 2. Two samples are randomlu selected from each population. The sample statistics are given below.

Draw the histogram showing population distribution : Draw the histogram showing population distribution. Locate value of population mean in your sketch and make the estimate of standard deviation.

Solving equilibrium problem to calculate the ph : Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution:a solution that is 0.165M in HC 2 H 3 O 2 and 0.120M in KC 2 H 3 O 2.

Whose amino acid sequence is known : After Drosophila DNA has been treated with a restriction enzyme, the fragments are inserted into plasmids and selected as clones in E. coli. With the use of this "shotgun" technique, every DNA sequence of Drosophila in a library can be recovered.

Use of standard deviation : Discuss the use of standard deviation. Explain how it might be useful to you in your research and how you would explain results using standard deviation.

Find ph of the solution at equivalence point : 100 mL of 0.200 M HCl is titrated with 0.250 M NaOH .What is the pH of the solution at the equivalence point?Express the pH numerically.

How do protostomes and deuterostomes differ : If a plant that is 4n undergoes sympatric speciation by autopolyploidy, what will be its ploidy as a new species?

User Account

All Pages