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"Machine A has an immediate cost of $14,000, and it will earn a net income of $6300 per year for a total of 4 years. Machine B has an immediate cost of $25,000, and it will earn a net income of $4500 per year for a total of 20 years. Assume that Machine A can continually be replaced at the end of its useful life with an identical replacement. Neither machine has any salvage value. Enter the annual equivalent worth of the machine that is the best alternative if the interest rate is 7.9%. If neither machine is acceptable, enter 0."
What is the concentration of the diluted solution in mg Fe/mL solution? What is the total mass of iron (Fe) in the 100 mL volumetric flask.
what is the density of the block? How to approach the problem The apparent mass of the object in the fluid, 5.6 , is equal to its mass in air, 50.0 , minus the mass of the displaced fluid
Elemental sulfur reacts with oxygen and water to produce Sulfuric acid in the presence of a catalyst. What minimum mass of sulfur is needed to prepare 175g of sulfuric acid
Outline a procedure for the recrystallization of benzoic acid that contains both a soluble and an insoluble impurity (using water as the solvent).
A gaseous compound containing hydrogen and carbon is decomposed and found to contain 85.63% C and 14.37 H by mass. The mass of 258 mL of the gas, measured at STP is 0.646 g. What is the molecular formula of the compound?
Cr2 O72- (aq) + Cu(s)→Cr3+ (aq) + Cu2+ Balance the equation in acidic solution and find out how much of a 0.850 M K2 Cr2 O7 solution is required to completely dissolve 5.25 g of Cu.
At LCC 5,500 cars commute an average of 15 miles each in cars that get an average gas milage of 19 miles per gallon. How many grams of lead are released each time these cars drive? The answer was 4.342 kg and then 9.5724 lbs (when you multiply b..
Indicate the solubility of the following solutes in 100 g of water
The mole fraction of oxygen in the atmosphere is .21. If the barometric pressure is 0.975 atm, what is the concentration of oxygen in water? Kh=1.3 x10^-3 M/atm
Calculate the amount of water that must be supplied to a heat exchanger that cools 100 kg/hr of tomato paste from 90C to 20C. The water enters the heat exchanger at a temperature of 8oC
benzene is a hydrocarbon that is commonlynbsp used as a commercial solvent. however it isnbsp carcinogenic i.e.
Draw the lewis dot structure and predict the molecular and electron-domain geometries of the following ions. a) NO2- b) CO3 2- c)ClO2-
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