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When heated, lithium reacts with nitrogen to form lithium nitride:
6Li(s) + N2(g) → 2Li3N(s)
What is the theoretical yield of Li3N in grams when 12.7 g of Li is heated with 34.7g of N2?
If the actual yield of Li3N is 6.01 g, what is the percent yield of the reaction?
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How much heat (in kJ) is required to warm 13.0g of ice, initially at -11.0?C, to steam at 110.0?C? The heat capacity of ice is 2.09 J/g??C and that of steam is 2.01 J/g??C
At what pressure would a sample of gas occupy 6.56 L if it occupies 3.24 L at 4.81 atm? (Assume constant temperature.)
2-iodo-4-methylpentane was refluxed for an hour in the presence of sodium isopropoxide. Name and draw the product(s) of this reaction clearly showing the stereoselectivity and regioselectivity of the reaction.
The blank solution used to calibrate the spectrophotometer s 10.0mL of 0.2 M Fe(NO3)3 diluted to 25.0 mL with0.1 M HNO3. Why is this solution preferred to simplyusing de-ionized water for the calibration
gallium arsenide is a common semiconductor. this material becomes a conductor when irradiated with infrared light whose
An electron in the hydrogen atom makes a transition from an energy state of principal quantum number ni to the n2 state. If the photon emitted has a wavelength of 487 nm, what is the value of ni
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Addition of water to an alkyne gives a keto-enol tautomer product. Draw the ketone that is in equilibrium with the given enol.
It is produced natrually from degradation of organic matter, and also anthropogenically from fuel combustion.) The acid dissociation constant, Ka for formic acid is 10-3.7. Assume T=4*C and I=0.
A gas measures 180.0 mL at 87.0°C and 800.0 mm. Find its volume at standard temperature and 800.0 mm of pressure.
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