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What are the advantages and disadvantages of simple and fractional distillation? How would the shapes of a graph of these differ or compare if you were to plot distillation temperature vs. total volume of distillate collected?
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In the spring time, a background ozone level of 29.0 ppbv was measured in Edmonton. Convert the mixing ratio of 29.0 ppbv ozone to units of molecules cm-3. Assume a pressure of 1.108 atm and a temperature of 12.5 ºC.
Q1: In your gravimatric analysis experiment, you weigh the precipitate of AgCl in a filtering crucible. You have to weight your filtering crucible first (three weighing measurement), then do the filtration. After drying ...
What was the initial energy level of an electron if it was excited by a photon of wavelength 38.9µm and jumped to an energy level of 10?
1-Write balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of nickel(II) iodide and potassium c ...
Describe how to assign a Oxidation number from the text: The oxidation number of an atom in an elemental substance is zero. The oxidation number of a monatomic ion is equal to the ion's charge. Oxidation numbers for comm ...
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
A student finds that the mass of an object is 6.62 kg. She is told that her measurement has an error of 12.3%. What is the true mass (in kg) of the object?
How many grams of H2SO4 must be dissolved into 0.709 L of solution to generate a concentration of 0.303 M?
A 3.15- sample of NH4NO3 is introduced intoan evacuated 2.26- L flask and then heated to 245 C. What is the total gas pressure, in atmospheres, in the flask at245 C when the NH4NO3 has completely decomposed?
A chemistry lab experiment requires 67.4 grams of silvernitrate. How many grams of a 15.5% by mass solution of silvernitrate should be used?
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As