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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.
K changes as temperature changes, but is independent of concentrations.
K is the highest value that Q can have.
The value of K does not change as a reaction progresses toward equilibrium.
A reaction quotient is the same as an equilibrium constant.
As a reaction progresses backward toward equilibrium Q drops.
The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 1 Liter of 0.15M NaOH solution.
Two drops of 0.20 M imidazole solution were added to a solution containing ferrihemoglobin. The mass of the ferrihemoglobin solution was measured before the addition of the imidazole and the mass of the final solution was measured after adding the..
Copper dissolved in nitric acid, producing copper (II) nitrate. After reaction with sodium hydroxide and heating, copper nitrate changed to coper (II) oxide. Calculate the percent yield of this process if 1.075 g of copper produced 1.075 g of copp..
Complete and balance the equation for this reaction in acidic solution. ZnS + NO3^- -> Zn^2+ + S + NO Which element was Oxidized. Which element was reduced ? Which species was the oxidizing agent ? Which species was the reducing agent
The concentration of the saturated solution of glucose in water is 4.0 M under standard conditions. Find the standard free energy of dissolution of glucose
When 0.0172 mol HI is heated to 500 K in a 2 L sealed container, the resulting equilibrium mixture contains 1.9 g of HI. Calculate Kc for the decomposition reaction 2HI(g) *) H2(g) + I2(g) .
if a solution 110 mL HBr has unknown concentration and is titrated with 80 mL of .150 M NaOH base soultion. Calculate the concentration of the HBr solution.
A normal value for blood cholesterol is 200mg/dl of blood. If a normal adult has a total blood volume of 5 L, how much total cholesterol is present.
A 20.0-mL sample of this glucose solution was diluted to 0.500 L . How many grams of glucose are in 100. of the final solution
If 2.93*10^4 liters of water are required to dissolve 1g of calcium phosphate, and the solubility of calcium phosphate is 3.41*10^-5 g/l. what is the solubility of calcium phosphate in parts per million?
Assume that air pressure is 1.00 atm and the air temperature is 17.3 C. If the abolute zero apparatus is open to the air, how many moles of air will it hold?
what mass spectrometry techniw would be most effective in determining the chemical structure?
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