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Which of the following reagents could be used to separate the two anions in a solution of sodium sulfide and sodium acetate? Select all that apply.
a. sodium chlorideb. magnesium chloridec. potassium chlorided. sodium acetatee. copper(II) chloride
An aqueous solution containing 15.6 g of an unknown molecular (nonelectrolyte) compound in 109.5g of water was found to have a freezing point of -1.9 degrees C.
Using the orbital diagram outline steps used to describe the formation of a set of sp2 hybridized orbital for a carbon atom
the mass spectrum of an unknown ketone showed the molecular ion peak at mz 86. the relative abundances of the m to the
Assuming equal concentrations, rank these aqueous solutions by their freezing point. SnI4, NaNO3, Al(NO3)3, NaSO4. highest to lowest
Assuming 100% dissociation, calculate the freezing point and boiling point of 1.83 m AgNO3(aq). Constants may be found here.
a 75 ml sample of .05 molarity hcn ka 6.2x10-10 is titrated with .5 molarity naoh. what volume of .5 molarity naoh is
Phosphorus is combined with chlorine to give PClz a gaseous compound .calculate the value of z If you start with 2.097g of P and isolate 9.298g of PCLz .
Assume the density of the vinegar solution is 1.00 g/mL and 3.5 % by mass acetic acid.
2.58g of a gas has a volume of 3.97L at 745mmHg and 21 degrees celcius. What is the molecular weight of the gas?
When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 40 of water for your group
what is the molarity of a 99.O mL ethanol solution containing 8.11g of ethanol (C2H5OH)
the most common source of copper cu is the mineral chalcopyrite. how many kilograms of chalcopyrite must be mined to
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