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Question 1: When 0.2250 g of magnesium is heated with 0.5331 g of nitrogen in a closed container, the magnesium iscompletely converted to 0.3114 g of magnesium nitride. What mass of unreacted nitrogen must remain?
Question 2: A compound of uranium and fluorine is used to generate uranium for nuclear power plants. The gas can be decomposed to yield 2.09 parts by mass of uranium for every 1 part by mass of fluorine. If the relative mass of a uranium atom is 238 and the relative mass of a fluorine atom is 19, calculate the number of fluorine atoms that are combined with one uranium atom.
How many grams of the element nickel are contained in 10.0 g of a 10.2 wt % solution of nickel sulfate hexahydrate, NiSO4 . 6H2O (FM 262.85)?
A 10 mg of methyl chloride vapor is added to one liter of nitrogen at 20 C. Pressure is kept constant at 1 atmosphere. What is the final volume and the methyl chloride concentration in mg/cu m and ppmv?
They want us to find this ratio both before and after isomerization with 75mg of iodine. Also obtained IR, CNMR and HNMR data. Also, how to calculate theorectical yield. The final prodect weight was 3.1124g
the value of kf for cyclohexane is 20.0degcm and its normal freezing point is 6.6degc. a mass of 1.604 g of a waxy
1.3 grams of the non-electrolyte C2 H6 O is dissolved in water and the freezing point of the solution is found to be -0.80C. (a) What is the molar mass of C2 H6 O?
Assuming that the bath contains 250.0 g of water and that the calorimeter itself absorbs a negligible amount of heat, calculate combustion energies (delta E) for benzene in both kilojoules per gram and kilojoules per mole.
What volume (in mL) of 0.177 M CsI solution is required to react exactly with 34.9 mL of 0.118 M Cl2 solution according to the following reaction
The zinc in carbonic anhydrase is tetrahedrally coordinated by three neutral nitrogen-containing groups and a water molecule. The coordinated water molecule has a pKa of 7.5, which is crucial for the enzyme's activity. Draw the active site geomet..
Compute for q for the reversible isothermal expansion at 300K of 5.0 mol of a perfect gas from 500 to 1500 cubic cm
What volume of CO2 (g) at STP is formed when 6.00 g of cyclopentadiene, C5H6 (g) is fully oxidized
Problem- Practice in density calculations. Some pranksters managed to get a hold of some ethylene glycol, adipic acid and aromatic disocyanate and filled a U-Haul pickup truck full of polyurethane foam. A U-Haul pickup truck has a volume of 75.5 c..
What is the change in the boiling point of water at 100C per mm change in atmospheric pressure? The densities of water and steam at 100C are .958 and 5.977 X 10^-4 g/cm^3
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