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A gas at constant temperature occupies a volume of 4.59 L and exerts a pressure of 895 torr. What volume (in L) will the gas occupy at a pressure of 642 torr?
100 million automobiles, each containing kg of CFC-12 (CF2Cl2). If each of them releases 25% of its CFC-12 into the atmosphere per year how much cl in kilograms is added to the atmosphere
Explain, phenomena in terms of atomic structure and behavior. When you lightly bump into a car, why does it dent and not create a hole.
How many moles of Oxygen are in an "empty" two-liter cola bottle at atmospheric pressure (1atm) at room tempertature (25 degrees celsius) assume ideal behavior
Herbigon will be soluble at the concentration needed to kill weeds. What pH must the solution have to yield a solution in which the concentration of X+ is 6.00×10?3M ? The pKa of acetic acid is 4.76.
What is the limiting reactant when 4.5 moles of aluminum react with 6.7 moles of oxygen gas?
The rate expression for a particular reaction is rate=k[A][B]^2. If the initial concentration of B is increased from 0.1M to 0.3M, the initial rate will increase by which of the following factors
Traces of toxic, man-made hexachlorohexanes in North Sea sediments were extracted by a known process and by a new procedure, and measured by chromatography.
A 0.682 g sample of an unknown weak monoprotic organic acid, HA was dissolved in sufficient water to make 50 milliliters of solution and was titrated with a 0.135 molar NaOH solution.
Determine the mass, of: a.30.0 mL of the liquid propylene glycol, a moisturizing agent for foods,
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO
You have 425 mL of an 0.35 M acetic acid solution. What volume (V) of 1.10 M NaOH solution must you add in order to prepare an acetate buffer of pH = 5.34
The vapor pressure of ethanol is 100 mmHg at 34.9oC. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol in mmHg at 57.5 oC?
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