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Question - Consider the gas reaction of the formation of nitrogen dioxide from nitric oxide and oxygen. If 9.0 L of NO are reacted with excess oxygen gas at STP, what is the volume in microliters (use proper scientific notation) of the nitrogen dioxide produced?
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A buffer is prepared by mixing 453 mL of 0.143 M HCl with 983 mL of 0.848 M ammonia (NH3). Given that the Kb of NH3 is 1.8 x 10-5, calculate the pH of the solution.
Electrolysis of molten MgCl2 is the final production step in the isolation of magnesium from seawater. Assuming that 30.8 g Mg metal forms, calculate the following.
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3M HCL, what is the limiting reagent in this reaction. you may need to calculate mmoles of sodium benzoate first.
Caffeine is widely soluble in ethanol. Utilized ethanol instead of dichloromethane to extract the caffeine from tea? Why or why not?
Predict the normal boiling point of pure B (in degrees Celcius) given that deltaHvaporization(Pure B)=67.9kJ/mol.
A titration of 200.0 mL of 1.00 M H2A was done with 1.10 M NaOH. For the diprotic acid H2A, Ka1 = 2.5 × 10-5, Ka2 = 3.1 × 10-9. Calculate the pH after 600.0 mL of 1.10 M NaOH have been added.
a sample of a pure compound containing k cl and o had a mass of 0.855 g. the sample as first heated to drive of all
Compute the freezing point depression of liquid mercury caused by dissolved sodium if the mole fraction of sodium is 0.0477. For Hg(l), Tm = -39oCand DHfus= 2331 J mol-1
Calculate the following values for a 0.0150 M solution of NaH2A. and Calculate the following values for a 0.0150 M solution of Na2HA.
Calculate the wavelength of the photon emitted when an electron makes a transition from n=4 to n=3
If solutions of potassium carbonate, copper(II) chloride, and lead(II) nitrate are each added to a beaker, what is the net ionic equation for the precipitation reaction that occurs
How do the strengths of London forces compare in CO2 and CS2? Which of these is expected to have a higher boiling point?
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