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Pre-Iah [1} Using Henderson-Hasselhalch equaticin, calculate pH of 1m mL acetate buffer that is prepared with (1325 g of sodium acetate and 51.] mL of 2.4 M acetic acid {Du not forget the inn strength at solution). [2} When 2.5 rnL of [L5 M HCI selutien is diluted into 19 mL, what is the pH of the diluted selutien? [3} When 2.5 rnL of [L5 M NaDH selutien is diluted into 19 mL, what is the pH of the diluted selutie n?
A 4.20L sample of neon gas at 15 degrees C is at a pressure of 790mmHg. If the gas is compressed to 1.50L and the temperature of the gas is raised to 195 degrees C, what will the new pressure be
Suppose .30 mol of Ammonia and .40 mol of oxygen are added to a 5L container. If Y mol of water is present at equilibrium, calculate the equilibrium concentration of oxygen?
Problem- Designate the Bronsted-Lowry acid and the Bronsted-Lowry base on the left side of the equation below, and also designate the conjugate acid and the conjugate base on the right side.
Determine what would be the concentration of the final solution If you take a ten mili litres portion of the stock solution and dilute it to a total volume of 0.250 Litres,?
A galvanic cell Zn / Zn2+ // Cu2+ / Cu generates a current of 4.00 Amperes for 1.00 hour. The cathode increases in mass by 10.0g . If charge on an electron is 1.602 x 10-19 coulombs/ electron.
a buffer was prepared by adding 2.4 g of ammonium nitrate to 100.0 ml of 0.30 m ammonia kb 1.8 times 10-5. to this
A solution has an original concentration of .015 M Cu2+ and .025M IO3-. At equilibrium, the concentration of cu2+ is found to be .012M.
Calculate the concentrations of H2SO3, HSO3-, SO32-, H3O+ and OH- in a 0.025M H2SO3. The pH is 1.88 and the Ka1= 1.5 x 10-2 and Ka2 = 6.3 x 10-8.
A gas-filled balloon having a volume of 2.50 L at 1.2 bar and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final v..
Calculate the molar solubility of FeCO3 . How many grams of FeCO3 are present in 15.0 L of a saturated solution.
Determine the mass, of: a.30.0 mL of the liquid propylene glycol, a moisturizing agent for foods,
An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30°C and a pressure of 720. torr. The gas is then compressed to a volume of 25 mL, and the temperature is raised to 794.°C. What is the new pressure of the gas..
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