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A student prepared a buffer by adding 65 grams of sodium acetate and 50 mLs of 6M acetic acid to beaker and then adding enough water to raise the volume of the solution to 1L. Calculate the pH of the buffer he prepared.
Dry air is 78% nitrogen gas, 21% oxygen gas, and 0.9% argon gas. These gases can be separated by distillation after the air is first converted to a liquid. In one of the steps in this process, filtered air is compressed enough to increase the pres..
Use the values from the table of reduction potentials on the last page to determine ?Gº and Keq for the reaction as listed below.
The solubility of CO2 in water will increase when which condition is applied? * The Temperature is raised * Partial pressure of carbon dioxide is increased * Partial pressure of carbon dioxide is decreased
Calculate Kp for the reaction 2NOCl(g) ->2NO(g) + Cl2(g) at 400degrees C if Kc at 400 degrees C for this reaction is 2.1 × 10-2
calculate what quantity of potassium chlorate that has molecular weight of 122.5 needed to form 33.6 litres of oxygen?
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule
A reaction inside a cylindrical container with a movable piston causes the volume to change from 14.0L to 21.0L while the pressure outside the container remains constant at 0.975 atm.
question the following table gives the number of electrons protons and neutrons in atoms or ions of four elements
A solution of the weak acid formic acid (HCOOH) has a pH of 2.14 when the concentration of formic acid is 0.30M. What is the numerical value of the acid ionization constant (Ka), and what is the percent ionization of the formic acid
What mass of liquid water remains in the flask when equilibrium is established? The equilibrium vapor pressure of water at 55 °C is 118 mm Hg.
What volume of hydrogen can be produced at 22.0C and 1.01atm pressure by the reaction of 25.0ml of 2M HCL with 0.3g Zn?
What can you conclude from these results? -- Need 4 of them because I'm lost. Also, how can I estimate the useful range of a pH meter?
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