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Ziebart Corp.'s EBITDA last year was $335,000 ( = EBIT + depreciation + amortization), its interest charges were $9,500, it had to repay $26,000 of long-term debt, and it had to make a payment of $17,400 under a long-term lease. The firm had no amortization charges. What was the EBITDA coverage ratio?
Two particles with charges q1 and q2 are separated by distance d. Rank these scenarios according to the magnitude of the electrostatic (coulombic) potential energy.
The initial rate for an enzyme-catalyzed reaction has been determined at a number of substrate concentrations. Data are as follows:
A 500. mL gas sample is collected over water at a pressure of 740 mmHg and 60 °C. What is the volume of the dry gas at STP. (STP = 1 atm and 0 °C.) Vapor pressure of water at 60. °C is 149 mmHg
You then take 0.1657 g of pure reagent from bottle A, dissolve it in 100.0 mL of water, and titrate it in a precipitation titration against 0.0424 M Ba2+. The volume of Ba2+ required to reach the endpoint is 22.40 mL. a) What is the calculated mol..
Which protein elutes first from a diethylaminoethyl cellulose ion exchange column with a decreasing pH gradient
What is the value of the equilibrium constant at 500 K for a chemical equilibrium that as a delta H value of 250 kj/mol and a delts S value of 48 J/mol K?
0.00334 moles (total) of NaOH were added to an aspirin solution. 0.000884 moles of HCl were required to back titrate the excess NaOH to a colorless endpoint. Explain how many moles of aspirin are in the sample
The formula of a complex formed by a reaction such as M + nX = MXn can be determined by the method of continuous variations. The absorbances of a series of solutions of varying composition are measured at the wavelength at which the complex shows ..
Write a blance equation with Cu, NaI, I2, and a drop of acetic acid to form CuO and CuCO3.Cu(OH)2.
A standard analysis for determining the amount of oxalate ion, C2O42-, in a sample is to precipitate this species as calcium oxalate, which is insoluble in water. Write the net ionic equation for the reaction between sodium oxalate and calcium chl..
What is the difference between the chemical formula and the condensed formula of organic compounds? What information does each provide?
if 120.9 ml of water is shaken with a gas at 0.860 atm it will dissolve 0.00286 g of the gas. estimate the henrys law
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