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What mass of carbon dioxide (in ) is produced upon the complete combustion of 18.9 of propane (approximate contents of one 5-gallon tank)? Assume that the density of the liquid propane in the tank is 0.621.
How many electrons in an atom could have these sets of quantum numbers? A) n=3, B) n=5, l=0 and C) n=6, l=1, ml=-1
The energy from the radioactive decay of tritium is used to illinate exit signs that are posted in many buildings. The manufacturer adds 8 times as much tritium to the signs as is required to meet the brightness that fire codes require
What will be the concentration for the first ion that precipitates when the second, more soluble salt begins to precipitate
How many grams of sodium cyanide can be produced from 174 grams of calcium cyanide in the following reaction: calcium cyanide + sodium chloride --> calcium chloride + sodium cyanide
The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas
prepare a schematic diagram of the work up procedure, including the column chromatography with acetylferrocene, diacetylferrocene, ferrocene
what is the annual cost of operation in a 70°F room if the door is opened 10 times a day with an average heat gain per opening of 200 kJ? How much would it cost to keep the inside at 35° F? Show work.
Determine the percent yield for the reaction between 45.9g of NaBr and excess chlorine gas to produce 12.8g of NaCl and an unknown quantity of bromine gas.
The heat combustion for a sample of coal is 23.0 kJ/g. What quantity of coal (in grams) must be burned to heat 500.0g of water from 20.0Celsius to 95.0Celsius. The specific heat capacity of water is 4.184(J)/(Celsisus)(g).
using anbsp sample xenon gas that has a volume of 18.5 litres at 1.5 atm. what is the new volume if the pressure is
what is the maximum amount of sodium chloride that can be separated at 25 ºC by filtration, and what is the mass percentage of sodium chloride in the filtrate?
A horse of mass 218 kg pulls a cart of mass 238 kg.The acceleration of gravity is 9.8 m/s2 .What is the largest acceleration the horse can give if the coefficient of static friction between the horse's hooves and the road is 0.842.
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