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Ammonia is produced using the Haber process in which nitrogen and hydrogen combine. N2(g) + 3H2(g) => 2NH3(g) How many grams of nitrogen are needed to produce 650 grams of ammonia?
Einstein reasoned that the absorbed photon must have the minimum energy required to dislodge an electron from the metal surface. This energy is called the work function () of that metal.
Calculate the final temperature when a 24.7 gram sample of ice at 0oC is placed into a styrofoam cup containing 126 grams of water at 78.0 oC. Assume that there is no loss or gain of heat from the surroundings.
an empty volumetric flask weighing 60.42 grams weighed 309.60 grams when filled with water. after emptying the water
Find the empirical formulas for compounds with the following compositions: a. 8.74% magnesium, 91.26% iodine b. 36.86% nitrogen, 63.14% oxygen
What is the de Broglie wavelength of a 145 g baseball traveling at 30.0 m/s (67.1mph)? Is the wavelength much larger or smaller than the diameter of an atom .
elemental exonium not a real element consists of two major isotopesabundance mass59 94 amu41 112 amuwhat is the atomic
1. one of the standard solutions had an abnormally low absorbace reading causing a less positive slop for the
Calculate the volume of a sample of carbon monoxide at -21°C and 359 torr if it occupies 3.65 L at 298 K and 758 torr.
Identify the type of interactions involved in each of the following processes taking place during the dissolution of sodium chloride (NaCl) in water.
B)if water is added to 150ml of a 1.2M KCL solutionuntil the volume is 150 ml what is the new molarity?
write the equation for the reaction of acetone and methyl magnesium
If 25 ml of solution A is needed to make a 0.7 liters with a final concentration of 1.5%, what was the concentration percentage of the stock solution
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