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How many hydrogens are in C16H?, which has 3 ring(s) and 8 double bond(s)? How many hydrogens are in C8H?O2, which has 2 ring(s) and 1 double bond(s)
A is the sequence Na, Mg, Al, Si, and P. B is the sequence He, Ne, Ar, Kr, and Xe. Which statement below is true. The members of B are decreasing in size.
Calculate the pH of a buffer that contains 0.270 M hydrofluoric acid (HF) and 0.180 M cesium fluoride (CsF). The Ka of hydrofluoric acid is 6.8 x 10^-4.
Identify the substance produced in the liver that helps catalyze this reaction.
A balloon ?lled with helium gas has a volume of 434 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm.
Phosgene (COCl_2) has been used as a chemical agent in warfare. It blisters the lungs when breathed. Consider the following reaction: CO(g) + Cl_2(g) --> COCl_2(g). Calculate the temperature at which this reaction changes from spontaneous to non-spo..
Draw the structure of the product that is formed when 1-pentyne undergoes reaction with two equivalents of HCl.
calculate delta G foor the combustion of ethane: 2C2H6(g) + 7O2(g) = 4CO2(g) + 6H2O(l)
Excess air for combustion is calculated using the assumption of complete reaction whether or not a reaction takes place. For the typical combustion process the products are CO2 gas and H2O vapor. In combustion processes, since any oxygen in the coal ..
Butane gas is copresses and used as liquid fuel in dispossble cigarette lighter and light weight camping stoves. Suppose a lighter contains 2.74ml of butane. d = 0.579g/ml a, How many gm of oxygen are needed to burn the butane completely
If the minimum amount of solvent is recrystallized at 12.8 g by heating it to 70 C and sampling it in an ice water bath what is the minimum percent recovery of the recrystallized material?
One can approximate boiling point at reduced pressure using a pressure-temperature nomograph. What would you expect the observed boiling point to be at 50 torr for a liquid that has a boiling point of 280 degrees celsius at 760 torr
Name the major dehydrohalogenation product of the reaction of 2-bromobutane with potassium tert-butoxide in tert-butyl alcohol. Explain
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