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The solubility of benzoic acid at 0 degrees celcius is 1.7 g/L and at 90 degrees celcius is 45.5g/L. how much water do you need to dissolve 0.91g of benzoic acid at 90 degrees Celcius? How much of the original benzoic acid will remian in the solution once the temperature is reduced to 0 degrees celcius?
A balloonn containing a sample of Helium gas is warmed in an oven at constanst pressure. If the balloon measure 1.25 l at room temperature (20c), what is it volume at 98 c
Elements, which has the largest first ionization energy and equation correctly represents the first ionization of calcium?
Calculate the theorical yield (in grams) of potassium alum that could be obtained in the reaction. The molar mass of potassium alum is 474.39 g/mol.
at ordinary body temperature 37 the solubility of in water in contact with air at ordinary atmospheric pressure 1.0
you take stoichiometric amounts of 2-heptene c7h14 and oxygen in a sealed 1.500 l flask and allow them to react. the
A room contains 12,000 ft.³ of air at 75°F and 29.7 inches Hg Absolute. The air has a dew point of 60°F. How many pounds of water vapor are in the air
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,
Consider the reaction.mc019-1.jpgAt equilibrium, the concentrations of the different species are as follows.[NH3] = 0.105 M[N2] = 1.1 M[H2] = 1.50 M
A student titrated 20.0 mL of 0.410M HCL with 0.320M NaOH. Find the pH, [H3O+], and [OH-] when 21.50mL of titrant has been added.
The liquid rate used is twice the minimum, the equilibrium relationship can be represented as yA=9.95 xA then determine what is HOG, operating line relationship, NOG and packed height of the column?
Calculate the enthalpy change, , for the process in which 41.5 of water is converted from liquid at 2.1 to vapor at 25.0.
You are given solutions of HCl and NaOH and must determine their concentrations. You use 30.6 mL of NaOH to titrate 100. mL of HCl and 18.0 mL of NaOH to titrate 50.0 mL of 0.0796 M H2SO4. Find the unknown concentrations.
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