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(a) Identify (invent??) a salt which has a weak acid as it's cation and a weak base as its anion so that the salt would yield an acidic solution in water.
(b) Identify a salt (again with a weak acid as its cation and a weak base as it's anion) which would yield a basic solution in water.
(c) Identify a salt (again with a weak acid as its cation and a weak base as its anion) which would yield a neutral solution in water.
Calculate the volume of a gas if 10.0 ml of pure alcohol (C2H6O) is vaporized at its normal boiling point. (assume 1 atm pressure)
a sample of neon is collected by displacing 182 ml of water. the pressures of the gas and the atmosphere are equalized
Which of the following is an accurate comparison of the properties of nitrogen and oxygen. A. Nitrogen uses more oxidation states in its compounds than oxygen does
A 0.150-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium. Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.
how do you calculate the vapor pressure of water above a solution prepared by dissolving 34.9 g in glycerin c3h8o3 to
A colorless unknown substance is spotted on a TLC plate and developed in the correct solvent. The spots do not appear when visualization with a UV lamp or iodine vapors is attempted
traditional MALDI mass spectrometry, what are two factors that limit the spatial resolution that can be obtained in imaging mode?
What is the molarity of a solution formed by mixing 20.0 g sulfuric acid with enough water to make 500.0 mL of solution?
Oxygen gas is commonly sold in 40.5L steel containers at a pressure of 141 atm. What volume (in liters) would the gas occupy at a pressure of 1.05 atm if its temperature remained unchanged
A 25ml solution of quinine was titrated with 1.00 M hydrochloric acid, HCl. It was found that the soluiton contained 0.125 moles of quinine. What was the pH of the solution after 50 ml of the HCl solution were added? Quinine is monobasic with pKb=..
a mixture contains two compounds x and y. both compounds x y have a solubility 1 g100 ml of solvent at the temperature
compound of carbon and oxygen contains 3.00g of carbon and 8.00g of oxygen, what is the mass percent of carbon in the compound?
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