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A 0.107-g sample of a compound was treated as above, producing 80.8 mL of N2 saturated with water vapor at 25 °C and 746.9 torr. What is the mass percent of nitrogen in the compound?
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrangement give 2-butanol as the MAJOR product.
an aqueous kno3 solution is made using 87.6g of kno3 diluted to a total solution volume of 1.33l. density of the
Calculate the work of expansion of the gas in joules (1 J = 9.87 10-3 atm·L). Assume all the energy is used to do work.
The density of silver is 10.5 g/mL. What is the mass (in grams) of a piece of silver with a volume of 23.6 mL
question briefly explain how to make an acetic acid acetate buffer? give the chemical reaction between this buffer and
A sample of iron was heated to 125.0 degrees Celsius, then placed into 375 g of water at 19.8 degrees Celsius. The temperature of the water rose to 25.6 degrees Celsius. How many grams of iron were in the sample?
The initial rate of a reaction 2A + 3B -> C + 2D was measured using different initial concentrations of A and B. Calculate the value of k
The vapor pressure of water at 29 ^circ rm C is 30.0 rm torr. What is the mass percentage of aluminum in this alloy?
The half-cell is a chamber in the voltaic cell where one half-cell is the site of an oxidation reaction and the other half-cell is the site of a reduction reaction.
Fe(s) + 2HCL(aq)goes to FeCl2(aq) + H2(g) Change in enthalpy is -87.9kJ. How much heat is liberated at constant pressure if .368 g of iron reacts with 18.8mL of 0.568 M HCl?
What are resonance structures?
Explain how the method of continuous variations might be used to determine the stoichiometries of the following types of reactions-
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