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Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of {\rm KOH} required for precipitation to begin in each case.
write the net ionic equations for the reactions involved in the testing of each of the following anions
a a saturated silver chloride solution contains 1.58 x 10-4 g silver chloride per 100 ml solution. what is the molarity
when aluminum is heated in oxygen aluminum oxide is formed. what weight of the oxide can be obtained from 25.0g of the
A gas at 1 atm and 125degC is expanded from a volume of 150mL to a volume of 4L. The pressure of the gas after expansion is 500 torr. What is the temperature of the expanded gas
At 400°C, Kc = 64 for the equilibrium H2(g) + I2(g) 2HI(g). If 3.00 mol H2 and 3.00 mol I2 are introduced into an empty 4.0 L vessel, find the equilibrium concentration of HI at 400ºC. A) 0.15 M B) 1.2 M C) 2.4 M D) 4.8 M E) 5.8 M
Predict what a plot of temperature versus the volume of distillate will look like for the simple distillation and the fractional distillation of
How many total moles of ions are released when each of the following samples dissolves completely in water
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients (whic..
A 1.992g sample of octane, C8H18, is burned in a calorimeter that has a calorimeter constant of 144 J/celcius and contains 750.0g of water. the temperature of the water rose from 14.73 celcius to 42.78 celcius. Determine the enthalpy of combustion..
The temperature of an oxyacetylene torch flame can reach as high as 3137 degrees C what is the temerature in degrees F
Calculate the difference in activation energy between disproportionation and combination. At what temperature will termination be 90% by combination
you will be using 1.4 grams of salicylic acid to make aspirin. salicylic acid is the limiting reagent and one mole of
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