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Select all of the correct statements about reaction quotients and equilibrium constants from the choices below. A reaction quotient equals the equilibrium constant at equilibrium. As a reaction progresses forward toward equilibrium K rises until it reaches Q. As concentrations change Q changes, whereas K stays constant. If Q > K the reaction must progress forward to attain equilibrium. The richer a reaction mixture is in product the higher its Q value is. The value of K does not change as a reaction progresses toward equilibrium.
A manometer shows a mercury level of 225 mm Hg on the closed end of the tube and 108 mm Hg on the open end. If the atmospheric pressure is 760 torr,
(FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
Carbon Dioxide and water form during combustion of methane. How many grams of water vapor form when 2.39 g of methane react completely with excess oxygen? CH4 (g) + 2 O2 (g) ------> CO2 (g) + 2 H2O (g)
What are q and w (in kJ) for the reaction of 53.0 g of Na(s) and 48.0 g of Cl2(g) to produce NaCl(s) at 1 atm and 298K
Water molecules can undergo a self-ionization reaction to produce very small concentrations of hydronium and hydroxide ions
Standard Atmos. Pressure is 90.0 atm. What are the Partial Pressures of the Gases in mmHg?
An unknown mass of each of sand, initially at 24.0, absorbs 1970 of heat. The final temperature is 62.2 degrees C. Find the mass of sand.
a chemist often uses a white card with a black mark to aid in reading the meniscus of a clear liquid. How does this technique make the reading more accurate
If a 200 mg piece of gold (density =19.32 g/cm^3) is hammered into a sheet measuring 2.3x1.0 ft, what is the average thickness of the sheet in meters?
What monomers make up the zylon polymer, and how is the monomer made in industrial quantities? Are alternative monomers ever used
Find out the exact significant figures for each of the values - Indicate the number of significant figures
0.032 moles of balls, what are the steps the manager would follow to determine how many balls there are and calculate the final total.
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