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Imagine that we give N2(+), O2(+) and (NO)+ ions the same velocity of 30.0 km/s and then send them into a mass spectrometer where the magnetic field.
A solvent called "mixed xylenes" contains the o-xylene, m-xylene, p-xylene and ethyl benzene.
After the reaction of the slag (solid residue) was analyzed. It contained 3.8 % Carbon, 5.8 % Phosprorus, and 26.6 % Calcium by mass.
If a 25gm sample of calcium carbonate is added to a 75.5 ml HCl (density = 1.125gm/cm3, 26% HCl by mass), calculate the molarity of the HCL
Linear Programming for profit optimization.The Exeter Company produces two basic types of dog toys
Forecasting Exponential Smoothing.Exponential smoothing with smoothing constant ? = 0.1. Use the actual value of the first period as the starting forecast
A cylindrical bar of gold that is 1.5 in. high and 0.25 in. in diameter has a mass of 23.1987g, as determined on an analytical balance.
Calculate the sodium ion concentration when 60.0 mL of 6.0 M sodium carbonate is added to 30.0 mL of 1.0 M sodium bicarbonate.
If the sun which is 93,000,000 miles away away from Earth was to go out, how long would it take for us to know that this had happened?
What is the molarity of a solution formed from 20.0 grams of NaCl dissolved in 650.0 mL of H2O?
Linear Programming Modification for Capital Budgeting.Need LP tutorial help involving optimization and the use of Solver.
Gasohol is a fuel additive containing ethanol (C2H6O) that combusts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O).
Calculate molality, the mole fraction of water, and the percent by mass of sodium chloride.
Maximization of Profit for Cheese Spread Manufacturing.Megley Cheese Company is a small manufacturer of several different cheese products
What is the limiting reagent, how many moles of excess reagent will there be, and how many grams of each product will form?
Regression Optimization to Determine Price.You decide to buy'a diamond ring. To make sure you get a quality ring for your money
If 350.0 mL of 6.00 M H2SO4 reacts with 45.00 grams of Al in the following reaction, what is the limiting reagent.
Forecasting time series based on Moving average.Can you improve upon your exponential smoothing?
How many grams of C*6H*14O*6 should be formed from the reaction of C*6H*14O*6 should be formed from the reaction of C*6H*12O*6 .
Exponential smoothing forecast.Sales of Cool-Man air conditioners have grown steadily during the past 5 years:
Industrially, nitric acid (HNO3) is produced by the Oswald process represented by the following - what mass of NH3 is needed to produce 5 tones of HNO3?
Air bags are activated when a severe impact causes a steel ball to compress a spring & electrically ignite a detonator cap.
Calculate the volume, in cm3 that the sample would have @ STP, assuming that it remains gaseous.
Optimisation for Running a Firebreak.A forest fire is burning down a narrow valley 3 miles wide at a speed of 40 feet per minute.
How many moles of water are made from the reaction of 2.2 moles of oxygen gas with unlimited quantities of hydrogen gas?