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CASE STUDY: In July 1983, an Air Canada Boeing 767 ran out of fuel over central Canada on a trip from Montreal to Edmonton. (The plane glided safely to a landing at an abandoned airstrip.) The pilots knew that 22,300 kg of fuel was required for the trip, and they knew that 7682 L of fuel was already in the tank. The ground crew added 4916 L of fuel, which was only about one fourth of what was required.
The crew members used a factor of 1.77 for the fuel density-the problem is that 1.77 has units of pounds per liter and not kilograms per liter! What is the fuel density in units of kg/L? What mass and what volume of fuel should have been loaded? (1 lb = 453.6 g)
A solution of ammonia and water contains 2.70×1025 water molecules and 8.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution. Enter your answer numerically.
To determine the organic material in a dried lake bed, you have determined the percent carbon by mass at two different locations. In order to compare the means of the two different locations, you need to determine whether the standard deviations o..
question a 50.00-ml solution of 0.0350 m ammonia kb 1.8 times 10-5 is titrated with a 0.0152 m solution of
A gas contains 17% O2, 11% CO2 and 72%N2. It is at 1.013 *105 Pa pressure. Calculate the partial pressure of each component
How many grams of riboflavin (molecular mass = 374.6g/mol) are required to prepare a 1.00L solution that is 5.00 x 10^-5 M
How much heat is absorbed in the formation of 1.69 mol of NO? Answer units KJ
A reaction has a standard free-energy change of -12.60 kJ mol-1 (-3.011 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C
How many electrons are in the oxidation half-reaction. How many electrons are in the reduction half-reaction? How many electrons are transferred
calculate the difference between the Gibbs free energy and Helmholtz free energy for this reaction at normal temperatures and pressures.
Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 265.0 mg of the compound in a 110-mL bulb at 170°C gives a pressure of 440.0 torr. What is the molar mass of this compound
The density of water at room temperature is lass than the assumed 1.0 g/mL used in the calculations for determining the enthalpy of neutralization.
A mixture of 3 peptides (A) KFTS, (B) NELS, (C) GDSF were separated using an anion exchange column at pH 8. List the order of elution for the three peptides.
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