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Calculate the change in internal energy on an isothermal compression of 1.00kg of water at 20degress from 10^2 to 10^4 kPa
Suppose 10.16 mL of the same thiosulfate solution reacts with the iodine replaced by 20.00 mL of an unknown solution of sodium hypochlorite. Calculate the weight, in grams, of available Cl in a liter of the unknown solution.
When given the reactants in a reaction and their concertration and the time it takes for the reaction to occur, how do you find the rate expression, the order of reaction for each reactant, and the k constant for the reaction
Determine How many mg of a 298 mg sample remains unreacted after twenty three days if 32P decompose by a first-order mechanism, half-life = 14.3 days.
A helium-filled balloon has a volume of 2.63 L at 28 ? C. The volume of the balloon decreases to 2.36 L after it is placed outside on a cold day.
Hexafluorosilicic acid is made by the reaction of silica and hydrofluoric acid by the following reaction 6HF + SiO2 ? H2SiF6 + 2H2O ?Hr = -670 kJ/mol
A compound is composed of elements C, H, and N. A 11.550-mg sample of the unknown compound was combusted, producing 31.332 mg of CO2 and 8.983 mg of H2O. What is the empirical formula for this compound
How to calculate wavelength of light emitted when transition in hydrogen atom? How caclulate wavelength in nanometers?
It takes 585J of energy to raise the temp of 125.6g mercury from 20.0 degrees C to 53.5 degrees C. Calculate the specific heat capacity and the molar heat capacity of mercury
The vapor pressure of mercury is .0127 torr at 50 degrees celcius and .0888 torr at 80 degrees celcius. calculate the enthalpy of vaporization of mercury
a 0.755 g sample of hydrated copper (II) sulfate was heated carefully until it had changed completely to anyhydous copper(II) sulfate (CuSO4) with a mass of 0.438 g. Determine the value of x
a large containerized planting that contains 79kg of soil. An analysis shows that you need to neutral 3.27 meq/100gof acidity. How much of finely ground pure CaCO3
Calculate the pH during the titration of 100.0 mL of 0.200 M HCl with 0.400 M NaOH. First what is the initial pH (before any NaOH is added)? - What is the pH after 38.4 mL of NaOH are added?
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