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What is the contribution to the internal energy from translations for an ideal montatomic gas confined to move on a surface? What is the expected contribution from the equiparyition theorm?
If a solution of HIn is adjusted to pH 6.23 contains a mixture of HIn and In- with a total concentration of 1.84x10-4M. The absorbance at 440nm is 0.868. Compute pKa
How would you write a balanced chemical equation using structural formulas to show how acetic acid reacts weakly with water to transfer a proton and produce a hydronium and an acidic ion?
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25celsius, the vapor pressure of the pure benzene is 100.84 torr. what is the vapor pressure of a solution made from dissolving 15.4g of biphenyl in 34.2 o..
A shiny piece of metal is beleved to be either platinum or nickel. if the price has a mass of 156.485g and a volume of 7.31 ml, calculate its density and decide which elemnt it is made of. The density of Ni is 8.9 g/ml, pt is 21.4 g/ml
lactose is a sugar most commonly found in milk and is made up of carbon hydrogen and oxygen. after analyzing a sample
If 42.1 mL of 1.02 M sodium hydroxide, measured using a graduated cylinder, is placed in a beaker filled with 300 mL of DI water, what is the concentration of the diluted NaOH solution
calculate the enthalpy change of a reaction using the following values enthalpy of reactant 1 404 kj enthalpy of
Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP.
Explain under what conditions can liquid CO2 exist. Be specific. Can it exist as a liquid at normal room temperature
if you prepare a 1.00 m solution of nh4clo4 beginning with water at 26.0c what is the final temperature of the solution
hydrogen gas is collected over water at 24 degrees celcius. the total pressure of the sample is 755 millimeters of
Five mineral samples of equal mass of calcite, CaCO3 (MM 100.085), had a total mass of 10.1 ± 0.1 g. What is the average mass of calcium in each sample
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