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Potassium alum, synthesized has the formula KAl(SO4)2 x 12 H20, but when written as a "double salt" its formula is K2SO4 x Al2(SO4)3 x 24H20.
A sample that weighs 25.12 g contains 6.022 X 10^23 particles. If 25.00% of the total number of particles are argon atoms and 75.00% are another element, what is the chemical identity of the other
A 2.50-L vessel contained 0.0153 mol of phosphorus trichloride, 0.0123 mol of phosphorus pentachloride, and 0.0831 mol of chlorine at 250°C in an equilibrium mixture. Calculate the value of Kc f
Write an expression that describes the amount of money Isaac will spend if her buys x sheets of the for rides and y tickets for shows.
Determine the solubility of N2 based at 4° and 40°C you must determine the partition coefficient from free energies.
A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of 3.00 x 105 m/s and enter a uniform magnetic field of 0.600 T directed
What sort of interaction occurs between adjacent alcohol molecules? And what sort of interaction occurs between adjacent ketone molecules? Which is stronger?
If weight in the general population is normally distributed with an average of 160 and a standard deviation of 20 pounds, what is the probability of selecting someone who weights 120 or less or 170
In the first 14.0 of the reaction, 1.9×10?2 of is produced in a reaction vessel with a volume of 0.470. What is the average rate of the reaction over this time interval?
Write symbol for bromine. What is the atomic number of it in periodic table? How many protons and electrons are there in the atom of bromine? Give the highest possible and minimal oxidation number
Bacterial digestion is an economical method of sewage treatment. The reaction
A piece of metal alloy with a mass of 114g was placed into a graduated cylinder that contained 25.Ml of Water, raising the water level to 56.7 ML. What is the density of the metal?
Water and glycerol, CH2(OH)CH(OH)CH2OH, are miscible in all proportions. What does this mean? How do the OH groups of the alcohol molecule contribute to this miscibility?
What was the total amount of manufacturing costs assigned to the 5,000 units in the ending work in process?
How would you expect the solubility of these compounds in water and in hexane to change as n increases? Explain.
Mr. Gomez decreased the speed of his car by 30 miles per hour over a period of 10 seconds. Find the average change in speed each second.
A reaction is known to be zero order in [SOCI2] and second order in [CH3CN]. The reaction rate constant is 2.1 x 10^2 M^-1 s^-1. What fraction of the original amount of SOCI2 is present after 40 secon
A solution is made by dissolving 6.10 g of K2SO4 in 700 mL of water. The freezing point of this solution is -0.24 °C. What is the van't Hoff factor for K2SO4 at this concentration?
A certain radioactive (parent) nucleus transforms to a different (daughter) nucleus by emitting an electron and a neutrino. The parent nucleus was at rest at the origin of an xy coordinate system.
Benzene (C6H6) burns in air to produce carbon dioxide and liquid water. Calculate the heat released (in kilojoules) per gram of the compound reacted with oxygen. The standard enthalpy of formation
Your data of the density of sodium chloride solutions should have produced a straight line when plotted. How could this plot be used to determine the density of any concentration of sodium chloride
At the surface of the ocean, the water pressure is the same as the air pressure above the water, 15 lb/in2. Below the surface, the water pressure increases by 4.34 lb/in2 for every 10 ft of descent. (
Ammonium nitrate decomposes explosively upon heating to form nirtogen gas, oxygen gas, and sterm. Assume ideal behavior for gas mixture.
Consider the reaction of (CH3)3CO- with iodomethane or 1-chlorobutane. Will the reaction rate increase, decrease, or remain the same if the concentration of iodomethane is increase? Explain.
The manager of a furniture factory finds that it costs $2200 to manufacture 100 chairs in one day and $4800 to produce 300 chairs in one day. What is the y-intercept of the graph and what does it re