A buffer solution is composed of 0.1 mol NH3 and 0.1 mol NH4Cl in 1L. This solution is diluted 10 times. What is the pH change?
A buffer solution is composed of 0.1 mol NH3 and 0.1 mol NH4Cl in 1L. This...
You have a 750mL of a buffer solution that is composed of NH3 and NH4Cl with a Kb value 1.8x 10^5 and a pH 9.43...... How many mL 6.00M HCl can be added before the buffer is exhausted?
A 1.0-L buffer solution initially contains 0.25 mol of NH3 (Kb=1.76×10−5) and 0.25 mol of NH4Cl. In order to adjust the buffer pH to 8.85, should you add NaOH or HCl to the buffer mixture? What mass of the correct reagent should you add?
Consider a buffer solution that is 0.50 M in NH3 and 0.20 M in NH4Cl. For ammonia, pKb=4.75. Calculate the pH of 1.0 L upon addition of 0.090 mol of solid NaOH to the original buffer solution.
Consider a buffer solution that is 0.50 M in NH3 and 0.20 M in NH4Cl. For ammonia, pKb=4.75. Calculate the pH of 1.0 L upon addition of 0.050 mol of solid NaOH to the original buffer solution. Thanks!
Consider a buffer solution that is 0.50 M in NH3 and 0.20 M in NH4Cl. For ammonia, pKb = 4.75.Part A Calculate the pH of 1.0 L of the original buffer, upon addition of 0.020 mol of solid NaOH.
What is the ratio of [NH4Cl]/[NH3] in order to make a NH3/NH4Cl buffer solution with pH=8.70. (Kb for NH3 is 1.8 x 10^–5)
1. You have a 1L solution of 0.1 M phosphate buffer at pH 2.0. What is the pH of this solution after you add 5 grams of NaOH? Assume there is no volume change and phosphate buffer has the following pKa values: 2.15, 6.82 and 12.38.
A buffer solution consists of 0.00300 M ammonia (NH3) and 0.00500 M ammonium chloride (NH4Cl). What is the change in pH when 0.00100 moles of NaOH are added to one litre of the solution without any change in volume? The pKa of NH4+ is 9.24.
A buffer solution is composed of 4.50 mol of acid and 9.75 mol of the conjugate base. If the pKa of the acid is 2.50, what is the pH of the buffer? pH = Answer
A buffer solution is composed of 8.00 mol of acid and 2.25 mol of the conjugate base. If the pKa of the acid is 4.90, what is the pH of the buffer? pH= _______