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Find the PH of a 0.20M solution of sodium propionate, Nac3h5o2. Ka of propionic acid, HC3H5O2 is 0.0000134 (Hint: Kw=kaKb)
Find the PH of a 0.30M solution of sodium benzotate, Nac7H5O2. Kb for the benzoate ion, C7H5O2, is 0.000000000155.
which one of the following is chiral? a. 1,1-Dibromopropane b. 1,2-Dibromopropane c. 1,3-Dibromopropane d. 2,2-Dibromopropane e. 2-Bromo-2-chloropropane
The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall reactions of a number of such steps for methane gas is as follows
the einstein equation emc2nbspshows that 1.0g of matteris the equivalent of 2.1 x 1010nbspkcal. when 2.0 g ofhydrogen
A sample of helium gas occupies a volume of 24.9 mL when meassured at 20.9 degree C and 527 torr. What is the volume of the gas in mL if the temperature is increased to 99.8 degree C and the pressure remains constant
when power was turned off to a 30.0 gal. water heater the temperature of the water dropped from 75.0degc to 22.5degc.
A household refrigerator with a COP of 1.2 removes heat from the refrigerated space at a rate of 60 kJ/min. Determine the electric power consumed by the refrigerator and the rate of heat transfer to the kitchen air.
How much heat is needed in kJ to convert 878 g of ice at -10°C to steam at 134°C? (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporiza..
Nitrogen and hydrogen combine to form ammonia in the Haber process. Calculate (in kJ) the standard enthalpy change ?Hº for the reaction written below, using the bond energies given.
Enough of a monoprotic acid is dissolved in water to produce a 0.0155 M solution. The pH of the resulting solution is 2.43
suppose .853L of H2 is collected at 15 degrees celcius and 782 mmHg. how much electricity in coulombs must have passed through the solution
The pH of a 0.500 solution of an aqueous weak acid (HA) is 2.30. Calculate the Ka for the weak acid.
Balance the following equations and write the corresponding ionic and net ionic equations (if appropriate). 1) Balance the equation
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