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1) Write a net ionic equation for the precipitation reaction, if any, that occurs when aqueous solutions of the following ionic compounds are mixed:
(a) Pb(NO3)2 and NaCl
(b) Ba(NO3)2 an
d NiSO4
(c) NaCl and KNO3
2) Write a balanced equation for each of the following neutralization reactions. Include states.
(a) Potassium hydroxide solution is added to phosphoric acid.
(b) Strontium hydroxide solution is added to acetic acid.
Draw the flow of e- and the products of the Methoxide Ion and water including formal charges on all compounds.
A balloon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 102 L and a pressure of 131 atm at 23 celsius
an ideal gas originall at 0.85 atm and 65 degrees celcius was allowed to expand until its final volume pressure and temperature were 94 mL, 0.60 atm, and 47 degrees celcius respectivily. What was its inital volume?!
a sample of vinegar of 50 ml and density of sample 1.06 gml was diluted to 500 millilitres. titration of a 50 ml of
write equations showing how caffeine could be extracted from an organic solvent and subsequently isolated.
At what temperature will a gas be at if you allow it to expand from an original 456 mL at 65 celcius to 3.4 L?
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization of water at 273 K and 1 bar.
Which of the following is a use for nuclear energy?
What is the binding energy, in amu, of 13C? Masses are: proton = 1.00728 amu, neutron = 1.00867 amu, electron = 0.00055 amu, and 13C = 13.00335 amu.
Two 20.0-g ice cubes at -16.0 °C are placed into 245 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
A volumetric pipette was found to deliver 5.01 mL of ethanol at 24°C. The mass of the ethanol was measured to be 3.9462 g. What is the density of ethanol at 24°C
Explain the different mechanisms by which each of the inhibitors act to reduce the activity of the catalytic enzyme.
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