The concentration acid and conjugate base in a buffer

Assignment Help Chemistry

Reference no: EM13689249

Question- The higher the concentration acid and conjugate base in a buffer, the smaller the pH change when acid or base is added. Determine whether the above statement is true or false by performing the following calculations:

a) compute the pH change in the following two buffers when 1 g of KOH is added:

ka = 5.71 x 10^-10

1) 500ml of a 0.10m nh4cl and 0.10m nh3 buffer

2) And when it is added to 500ml of a 1.00m NH4Cl and 1.00m NH3 buffer.

In which buffer does the largest pH change occur? Does concentration of the buffer solution effect it's buffering capacity?

Reference no: EM13689249

Questions Cloud

How many nutritional calories are there per gram of candy : Question- A researcher studying the nutritional value of a new candy places a 3.30-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.89 Â°C. If the heat capacity of the calo..

The first equivalence point was observed : Question- In conducting a titration of 75.00 mL of certain triprotic acid with 0.0800 M NaOH, the following information was recorded: 1) The first equivalence point was observed at pH 4.94 after the addition of 12.40 mL of NaOH.

Explain the valence electrons of an atom : Question- How does the effective nuclear charge experienced by the valence electrons of an atom vary going from left to right across a period of the periodic table

What is the concentration of iron in the well water : This diluted sample is placed in a variable pathlength cell. The absorbance of the reference and the sample solutions match when the pathlength is 2.55 cm. 1) What is the concentration of iron in the well water. For each solution the zero is set wi..

The concentration acid and conjugate base in a buffer : Question- The higher the concentration acid and conjugate base in a buffer, the smaller the pH change when acid or base is added. Determine whether the above statement is true or false by performing the following calculations

Calculate the ratio of basic to acidic forms : Calculate the ratio of basic to acidic forms of the indicator before and after the last 0.01 mL of base was added. Use the results of your calculation to explain why this would or would not be a good indicator for this titration, compared to the i..

Substitute in the symbols for the specific heat capacities : Algebraically substitute in the symbols for the specific heat capacities for the copper and water (Cs,Cu, and Cs,H2O), the symbols for masses (mCu and mH2O), and the symbols for the temperature change (Tf, Ti, Cu, and Ti,H2O).

The reaction shift in order to reach equilibrium : Question- If the initial concentrations of HPO4 and H2C03 are both equal to 0.100 M, and the initial concentrations of H2P04 and HC03 are both equal to 0.000 M, in which direction will the reaction shift in order to reach equilibrium

The enthalpy change for the reaction of titanium metal : Question- The enthalpy change for the reaction of titanium metal with gaseous iodine is given by the following thermochemical equation- 2 Ti(s) + 3 I2(g) ---> 2 TiI3(s) DeltaH = -839 kJ What is the enthalpy change for the reaction below? TiI3(s) -..

User Account

All Pages