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The Ksp of AgCl at 25 oC is 1.6 x 10-10. Consider a solution that is 1.0 x 10-4 M CaCl2 and 1.0 x 10-6 M AgNO3. 1. Q < Ksp and a precipitate will not form. 2. Q < Ksp and a precipitate will form. 3. The solution is saturated. 4. Q > Ksp and a precipitate will not form. 5. Q > Ksp and a precipitate will form.
A 224mL sample of an aqueous solution contains 2.80% MgCl2 by mass. Exactly one-half of the magnesium ions are Mg?28, a beta emitter with a half-life of 21 hours
An aqueous solution containing 2.0M of AgNO3 is slowly added from a burette to an aqueous solution that holds 0.01M Cl- as well as .01M Br-. Is separation of the two ions by selective precipitation feasible? Assume 10^-5 M as the complete removal ..
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 16.0 L
A mixture consisting of 50 grams ethanol and 50 grams water is distilled using an efficient column. How much water will remain in the distillation flask the instant all of the azeotrope has distilled?
The normal boiling points of CO and SO2 are -192c and -10c, respectively. a) At 25c and 1 atm, which gas would you expect to have a molar volume closest to the ideal value
Explain how molecular spectroscopy can be used for either the measurement or identification of a molecule.
An oxygen tank kept at 20.0?C contains 28.0 moles of oxygen and the gauge reads 31.0 atm. After two weeks, the gauge reads 20.7 atm. How much oxygen was used during the two-week period?
what is the theoretical yield of nitrogen in grams from part (a)? c) if the actual yield of nitrogen in the reaction in part (a) is 30.3g calculate the percent yield.
The nuclear mass of 141Ba is 140.883 amu. Calculate the binding energy per nucleon for 141Ba.
How many moles of ammonia are required to react completely with 146 L of oxygen gas according to the following reaction at 0 C and 1 atm
The heat capacity of liquid water 4.18 J/g degree celcius and the molar heat of vaporization 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67 degree celcuis into 1.00 g of steam at 100 degrees celci..
Calculate the Molar mass of a gas if 2.20g occupies 0.885L at 690 torr and 36 degrees C
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