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Assume you are carrying out the conversion of 1-bromobutane to 1-butane. How could you use Infrared Spectroscopy (IR) to determine when the reaction is complete?
Each quarter produced by the U.S. mint is made up of copper and nickel alloy. In each coin there is 0.00740 moles of Ni and 0.0886 moles of copper. What is the total mass of a quarter?
Ca (BrO3)2 determine molar mass for this compound and oxidation number of bromine in it .Write corresponding oxide of bromine,Name these compounds: NaBr, Fe(OH)3, HNO3
A 0.042 M solution of a monoprotic acid is 12 percent ionized. Calculate the ionization constant of the acid.
Write complete ionic and net ionic equation for the following reaction: lithium sulfate and strontium chloride. Express your answer as a chemical equation. Identify all of the phases in your answer.
How can the high electrical and thermal conductivities of metals be explained by "electron gas" model of metallic bonding? Ductility?
Write a balanced molecular equation and a net ionic equation for the reaction of solid aluminum hydroxide with a solution of hydrobromic acid. Include the states of each species
Calculate the titer of the EDTA solution in terms of mg of CaCO3/ml of EDTA.
For the reaction given below, the frequency factor A is 8.7 X 10^12 s-1 and the activation energy is 63 kJ/mol. What is the rate constant for the reaction at 65°C?
A person of weight 80 kg jumped off a platform of height 1 m and safely landed on his feet. What is the magnitude of the momentum change during the collision. Give in SI units.
A certain applications requires a mterial that is lightweight, an electrical insulator, and has some flexibility. Which class of materials would you search for this selection.
Question: Explain how the mass of a single atom in an element (jn amu), the mass of one mole of atoms of that element, and Avogadro's number are related.
Calculate the pH after the following volumes of titrant have been added: 0.00 mL, 10.0 mL, 20 mL, 40.0 mL, 45.00 mL, 50.0 mL.
Describe how to convert between the mass and the number of moles of a substance.
What is the equilibrium pH of a solution created by adding 10-4 moles of HCl to one liter of water?
If each of the following compounds were in solution, which of the ions contributed by that compound would the chloride electode measure?
How would you expect the amino acids glycine, alanine, and phenylalanine to travel relative to each other on the silica plates using a mixture of chloroform/methanol/ammonia? Explain your answer.
Starting with a concentration of 0.043 M for HI, calculate the concentrations of HI, H2, and I2 at equilibrium.
You suspect that an unknown is acetanilide (mp 113.5-114oC). Give a qualitative estimation of the melting point when the acetanilide is mixed with 10% by weight of naphthalene.
At 63.5 degrees celsius, the vapor pressure of water is 175 torr and that of ethanol, C2H5OH, is 400 torr. A solution is prepared by mixing equal masses of H20 and C2H5OH. What is the mole fraction of
A reaction has a rate law, rate = k[A][B]2. What is the overall order of the reaction?
What mass of glucose (180.0 g/m) must be added to 0.50 kg of water to increase the boiling point of the solution by 2.0 degrees C? (Kbp = 0.52 degrees C/mol)
A person of weight 80 kg jumped off a platform of height 1 m, bounced off and ended up on the same platform. What is the magnitude of the momentum change during the collision, in SI units?
Calcium nitrate and ammonium fluoride react to form calcium fluoride, dinitrogen monoxide, and water vapor. What mass of ammonium flouride is present after 15.0 g calcium nitrate and 17.50 g ammoniu
The titration of 35.0 mL of 0.250 M solution of Ca(OH)2 with 0.200 M HCl will require how many mililiters of the HCl solution for neutralization?