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What is the bond angle and molecular geometry around the middle two carbon atoms of cis-2-butene?
the piston of a vertical piston-cylinder device containing a gas has a mass of 200 kg and a cross-sectional area of
A solution of ammonia and water contains 4.50×1025 water molecules and 5.30×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
write the rate law for each elementary reaction in the mechanism. D) if the first step is slow and the second one is fast, what rate law do you expect to be observed for the overall reaction.
The enthalpy of formation of ethanol, C2H5OH, is 277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O.
what volume of ethylene glycol a nonelectrolyte must be added to 15.0 liters of water to produce an antifreeze solution
A gas at 250K and 15atm has a molar volume 12% smaller than calculated from the perfect gas law. Calculate (a) the compression factor under these conditions and (b) the molar volume of the gas.
How many moles of solute are present in each of the following solutions. (a) 145mL of 0.25M NaHCO3 (b) 631.0mL of 2.25M H2SO4
Bromine is a reddish-brown liquid. Calculate its den-sity (in g/mL) if 650 g of the substance occupies 188mL.
in a hydrogen atom the 2s and 2p orbitals have the same energy. however in a boron atom the 2s electrons have a lower
What is the balanced equation for the saponification of glyceryl trioloeate and sodium hydroxide
Why is it impossible for 100% pure ethanol to be obtained from fractional distillation of the fermentation mixture
How long does it take to deposit a coating of gold 1.00um thick on a disk-shaped medallion 4.00 cm in diameter and 2.00 mm thick at constant current
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