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A) A solution that is 6.5x10^-2 M in potassium propionate (C2H5COOK or KC3H5O2) and 9.0x10^-2 M in propionic acid (C2H5COOH or HC3H5O2)
B) A solution that is 8.0x10^-2 M in trimethylamine, (CH3)3N, and 0.10 M in trimethylammonium chloride, (CH3)3NHCl
C) A solution that is made by mixing 50.0 mL of 0.16 M acetic acid and 50.0 mL of 0.20 M sodium acetate
An inventor designs a new heat engine that can be modeled on the Carnot cycle. The working gas in the heat engine is 1 mole of helium. The isothermal expansion results in the internal volume changing from 1 L to 3 L
c3h8g 5o2g-gt 3co2g 4h2ol ho -2220 kjmolpropane is often used for gas grills and is typically purchased by filling a
Phenolphthalein has a pKa of 9.7. It is colorless in its acid form and pink in its basic form. For each of the pH's listed, calculate the ratio and predict the color
2noo2 makes no2 what mass of no2 is formed when no reacts with 384g o2? how many grams of no are required to react with
What is the wavelengths associated with an electron moving at 1.5x10^8 cm/s and a 60g tennis ball moving 1500 cm/s. Which particle has a longer wavelength
A sample of hydrogen gas collected at STP occupies a volume of 31.6 L. How many moles of gas does the sample contain? answer in mol please
How much heat energy, in kilojoules, is required to convert 58.0 g of ice at -18.0 *C to water at 25.0 *C ?
Twenty-five pounds of gas consisting of 40% CO, and 30% H2 are placed in a cylinder 200 ft^3 in volume. What is the a) average molecular weight of the gas?
What would happen to the melting point if this unknown were mixed with (a) an equal quantity of pure acetanilide. (b) an equal quantity of benzoic acid
If the reaction is first order in A and second order in B, what is the rate when the initial concentration of A = 2.30 mol/L and that of B = 2.03 mol/L
When 1.00 mol H2S was put into a 10.0 L vessel and heated to 1132 degrees Celcius , it gave an equilibrium mixture containing 0.0285 mol H2. what is the value of Kc at this temperature
Use the activity series to determine if a single replacement reaction can be seen to occur. If a reaction occurs, write the net ionic equation. a) Cobalt metal in a barium iodide solution b) Tin metal in a copper bromide solution
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