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Copper (II) Iodate precipitates from iodate solution. The formula of the precipitate is Cu(IO3)2. A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found to be 0.0012M. Determine the [IO3^-] and the Ksp of the substance.
Determine the quantity of unknown protein that has an absorbance of 0.227 when a blank has an absorbance of 0.081. The previously determined calibration curve has the form of a straight line with the equation A = 0.0182 × m 0.007
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. Kf = 1.86°C/m
An an isothermal process, the pressure on 1 mol of an ideal monatomic gas suddenly changes from 4.00 atm to 100.0 atm at 25°C. Calculate w
The heat capacity of a bomb calorimeter is found to be 5.68 kJ/oC. When a 1.652 g sample of glucose is burned in the calorimeter, the temperature of the calorimeter increases from 24.56 oC to 29.10 oC. Calculate the heat of combustion of glucose.
To make a 325 mL solution of 0.150 M NaCl, how many grams of NaCl need to be weighed out?
Write the complete ionic equation for each reaction that produced a precipitate? Write the net ionic equation for each reaction that produced a precipitate?
Suppose that microwave radiation has a wavelength of 11.2cm. How many protons are required to heat 245mL of Coffee from 25.0 C to 62.0C? Assume that the coffee has the same density,
calculate the gasphase proton affinity of NH3. The lattice energy of NH4Cl may be estimated from Kapustinskii's formula using rN-Cl = 3.50 Å.
calculate the specific heat of a substance if a 35 gram sample absorbs 28 joules as the tempature is raised from 292 kelvin to 313 kelvin.
Calculate the mass of KI in grams required to prepare 9.00 102 mL of a 1.00 M solution.
Give the structural formula of the lewis-acid base complex which consists of one mole of phenylmagnesium bromide and two moles of diethyl ether.
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.
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