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.134 mol of KCl and .257 mol of CaCl2 were dissolved in water. calculate the total number of moles of Cl- ions in the solution
A container is filled with C2H6O until its concentration reaches 1.375 mol. How many minutes will it take for 71.5 percent of the C2H6O break down?
What is meant by the term equivalent full units? How is this concept used in computing average unit costs? Provide an example. (3 questions)
If 5.00 X 10^3kg each of ammonia, oxygen, and methane are reacted, what mass of HCN and water would be produced, assuming 100% yield?
You are analysts comparing the performance of two portfolio managers using the Sharpe Ratio measurement. Manager A shows a return of 16% with a standard deviation of 10%.
The lifetime of a color television picture tube is normally distributed with a mean of 7.8 years and a standard deviation of 3 years. What is the probability that a picture tube will last more than ten years?
Considering the reaction: SO2Cl2(g) --> SO2(g) +Cl2(g) Kp=2.91 and temp = 298k. the partial pressure of SO2 is 137 torr and the partial pressure of Cl2 IS 285 torr. What is partial pressure of SO2Cl2?
what combination of monetary and fiscal policy should they choose? Use a graph, and be sure to identify the effects of each policy.
What are two primary responsibilities of the financial manager. From the Internet what are two additional ideas about the other activities that financial managers are involved in on a day-to-day basis.
calculate the ph of buffer solution made from .20 M HC2H3O2 and .050 M C2H3O2 that has an acid dissociation constant for HC2H3O2 of 1.8*10-5.
What is the probability Linda Lahey, company president, received exactly 1 email between 4 P.M. and 5 P.M. yesterday? What is the probability she received 5 or more email during the same period?
the solubility product constant for MgF2 is 6.4 × 10-9. How many grams of MgF2 will dissolve in 150 mL of H2O at 25°C?
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more com- plicated, but this is a reasonable ?rst ap proximation.)
If 125 cal of heat is applied to a 60.0 g piece of copper at 24C, what will the final temperature be? The specific heat of copper is 0.0920cal/(g x C).
2Al(s)+3H2SO4(aq) -> Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 15.5g. What minimum mass of H2SO4(in g) would you need?
What is the volume in the beaker with the aqueous solution NaCl of when equilibrium is attained, assuming ideal behavior? Part C: What is the volume in the beaker with the aqueous solution of a nonvolatile nonelectrolyte when equilibrium is attain..
A sample of gas has an initial volume of 13.8L at a pressure of 1.26 atm If the sample is compressed to a volume of 10.8L, what will its pressure be?
A solution is prepared by mixing 250 mL of 1.00 M CH3COOH with 500 mL of 1.00 M NaCH3COO.
Write the rate laws and determine the units of k (the rate constant) for the following reactions: (a) The reaction A + 2B --> C is found to be second order in A and B, and third order overall
If it takes 52 J of energy to warm 7.40g of water by 17°C, how much energy would be needed to warm 7.40g of water by 55 °C
If the initial concentration of N2O4 is 0.50 M, and no NO2 is initially present, what is the equilibrium concentration of N2O4? Kc = 0.0059 at 298 K N2O4 (g) 2NO2 (g)
The average concentration of strontium ion in seawater is 8.00 mg of strontium ion per kg of seawater. What is the molarity of the strontium ion if the density of the seawater is 1.025 g/mL.
A student is concentrating a solution having a polypeptide of modest molecular weight by pressure filtration through a membrane. The solute concentration on the feed side of the membrane is 0.10 M and the temperature is twenty five degree celsius.
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