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The Ksp of calcium carbonate is 4.5x10^-9. What is the concentration of a saturated calcium carbonate solution?
Draw thw active site of an enzyme that contains a macrocycle coordinated to a transition metal. Explain the function of the enzyme
Suppose the market demand function (expressed in dollars) for a normal product is P=80-q, and the marginal cost (in dollars) of producing it is MC=1q, where P is the price of the product and q is the quantity demanded and/or supplied.
Skinner's behaviorism and Address how his theory has evolved. What were the influences on this theorist's thinking that led to the development of the concepts in the theory
Show the terminal alkyne and alkyl halide from which the following products can be obtained. If two routes look freasible, list both
if a consumer has indifference curves that are convex to the origin but have a kink in them (similar to the perfect complements example, except the angle at the kink is greater than 90 degrees) how can we determine the optimal bundle
Exactly 25mL of this solution are diluted with deionized water to a new volume of 75mL. The absorbance of this solution is found to be 0.35. How many grams of Kool-Aid were in the opened package?
Which element of the marketing mix is demonstrated when the Mars Company has a sale on M&Ms brand candies?
If the titration required 23.95 mL of 0.2556 M HCl to reach the endpoint, calculate the equilibrium molar concentration of B4O5(OH)4 2- in the saturated solution.
None of the southern provinces of Spain were outside the control of the Moors before the end of the fifteenth century. So all the provinces of Andalucia must have been within Moorish control, because all of them are southern provinces.
Which act first established a federal commission to investigate claims of individual voter discrimination?
The experiment done was the synthesis of p-chlorophenoxyacetic acid. I have lab questions that I am unsure how to do. Please help. 1. How many moles of p-chlorophenoxyacetic acid should form in this reaction?
Calculate the number of kilograms of helium required to inflate a balloon with a volume of 100.000 L at a pression of 250 mmHg and atmospheric temperature of -35 ° C.
If the mass of the metal cylinder pictured below is 18.71 g, calculate the density of the cylinder.
how many grams of KOH are present in 32.5mL of a 6.42 M KOH solution
How many equivalent resonance forms can be drawn for SO2 without expanding the octet on the sulfur atom? (A) 0 (B) 1 (C) 2 (D) 3 (E) 4 17. In which of these species does the first atom in the chemical formula violate the octet rule? 18. How many e..
The temperature of the water and that of the gas are identical at 26oC. how many moles of helium have been evolved.
What amount of energy is required to melt a 13.5 g piece of ice at 0oC to form liquid water at the same temperature of 0? The heat of fusion of water = 333 J/g , T he specific heat of H2O is approx. constant at 4.18 J/g x C.
How many grams of hydrogen are collected in a reaction where 1.92 L of hydrogen gas is collected over water at a temperature of 40C and a total pressure of 738 torr.
the delta H OF vaporization for a new substance is 45 kj/mol and its delta H sublimation is 62 kj/mol, how much energy is needed for freezing 2.75 mol of a substance
The exothermic chemical reaction CO(g) + H2O(g) CO2(g) + H2(g) has Kc = 0.034 at 25°C. We currently have a flask containing all the components listed in this equation at equilibrium at 25°C. Subsequently, we will either (1) add some H2 to the flas..
if 6.oog of nitrogen gas is introduced into an evacuated 2.00L flask at 28*C, what is the pressure inside the flask?
A compound called pyrene has the empirical formula C8H5 . When 4.04 g of pyrene is dissolved in 10.00 g of benzene, the boiling point of the solution is 85.1°C.
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