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You have a mixture containing the following pairs of compunds as solid. which of the following reagents could you use to separate the two compunds from each other? You can only use one reagent for each of the separation. Reagents: Cold water, hot water or NH3(aq).
a. AgCl and PbCl2.
b. AgCl and Hg2Cl2.
c. Pb(NO3)2 and AgCl.
d.Hg2Cl2 and Hg2(NO3)2
e. AgCl and AgNO3.
f. PbCrO4 and PbCl2.
Most of the solid did not dissolve because the Ksp of ferric hydroxide is very small at 3 x 10^-39. However, when a certain amount of strong acid was added, the entire amount of solid dissolved. Determine the pH of the solution at that point that ..
Calculate the final pressure of a gas if a 953-mL sample of the gas at 1.25 atm and 50.0 degrees Celsius is changed to 1.55 L at 75.0 degrees Celsius.Be sure to include units and correct significant figures
How many electrons in an atom could have these sets of quantum numbers? A) n=3, B) n=5, l=0 and C) n=6, l=1, ml=-1
Assume that .20 mol of the acid is added to 250 mL of water. To make a buffer of pH = 4, how many moles of the conjugate base must be added to the solution?
Some solid remained in the beaker after stirring with HCl. You washed the filter paper with ketone, which caught on fire and the filter paper was scorched
If the primary alcohol ethanol is subjected to sulfuric acid, an SN2 substitution would occur instead and diethyl ether would be formed.
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount from pure gasoline. assume the densities of ethanol and gasoline are
How much time is required to produce 200g of aluminum metal from molten aluminum oxide dissolved in cryolite, if you use a 12amp current
What mass of water can be heated from 22?C to 100 ? C by burning this piece of coal? Answer in units of g
The solubility of CO2 in water at 25 degrees celsius and 1 atm is 0.034 mol/L. What is its solubility at a partial pressure in air of 0.00017 atm? Assume that CO2 obeys Henry's Law. Enter your answer in scientific notation.
A voltaic cell consists of Pb/Pb2+a half-cell and a Cu/Cu2+ half-cell at 25 . The initial concentrations of and are 5.10×10?2 and 1.60 , respectively. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.360 V?
a sample of nitrogen gas is collected over water at a tempature of 23.0 c. what is the pressure of the nitrogen gas if atmospheric pressure is 785 mm hg
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