Define the total molarity of acid and conjugate base

Reference no: EM13646480

A beaker with 160 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.30 mL of a 0.420 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.

Express your answer numerically to two decimal places. Use a minus (-) sign if the pH has decreased.

Reference no: EM13646480

Questions Cloud

What is the capacitance of this capacitor in µf : A parallel-plate capacitor is made from two aluminum-foil sheets, each 3.0 cm wideand 5.00 m long. Between the sheets is a Teflon strip of the same width and length that is 0.030 mmthick. What is the capacitance of this capacitor in µF?

Explain the acid ionization constants for the acid : 19.0 mL of 0.126 M diprotic acid (H2A) was titrated with 0.1017 M KOH. The acid ionization constants for the acid are Ka1= 5.2*10^-5 and Ka2= 3.4*10^-10.

Find the acceleration of the elevator : A student stands on a bathroom scale in an elevator atrest on the 64th floor of a building. The scale reads 836 N. Find the acceleration of the elevator

What is the rate of flow in cubic feet per second : Gasoline flows through a 1 inch diameter hose at an average speedof 5 ft/s. What is the rate of flow in cubic feet per second

Define the total molarity of acid and conjugate base : A beaker with 160 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.30 mL of a 0.420 M HCl solution to the beaker. How much will the pH..

Product in traditional costing system - bullie manufacturing : Determine the manufacturing overhead cost per unit of each of the company's two products under the traditional costing system.

What was their mutual speed : A halfback on an apparent breakaway for a touchdown is tackled frombehind. what was their mutual speed immediately after thetouchdown-saving tackle

Define container initially contains only air at a pressure : Twenty-five milliliters of liquid nitrogen (density = 0.807 g/mL) is poured into a cylindrical container with a radius of 11.0 cm and a length of 20.0 cm. The container initially contains only air at a pressure of 760.0 mmHg (atmospheric pressure)..

Compute the temperature during the is othermal compression : A cylinder with a piston contains 0.250 mol of oxygen at 2.40 H105 Pa and 355 K. The oxygen may be treated as anideal gas. The gas first expands is obarically to twice itsoriginal volume. It is then compressed isothermally to itsoriginal volume, a..

User Account

All Pages