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Magnesium nitride (Mg3N2) is formed by the reaction of magnesium metal (Mg) with nitrogen gas (N2). No other products are produced. (A) How many grams of magnesium nitride can be made in the reaction of 35.00 g of magnesium and 15.00 g of nitrogen gas? (B) How many grams of excess reactant remain after the reaction?
what volume will 500 mL of gas at 20 C and a pressure of 420 mm Hg occupy if the temperature is reduced to -80 C and the pressure increased to 650mm Hg
the vapor pressure of water is 17.5 mmHg at 20 degrees Celcius, and 355.1 mmHg at 80 Celcius. Calculate the boiling point of water at 760 mm Hg.
From 15 mL H2O2 solution 22.0 mL gas evolved at 28.0 degrees Celcius and 740 Hgmm pressure. Calculate the concentration of the original H2O2 solution in mol/dm^3 unit.
Write mathematical equation that show how you will calculate the detected activity from the count rate the sample KCl
Predict the direction of the reaction when chlorine gas is added to an equilibrium mixture of COCL2, CO, and CL2. The reaction is COCL2(g) CO(g) + Cl2 (g)
Calculate the amounts of Cu AND Br2 produced in 1.0 h at inert electrodes in a solution of CuBr2 by a current of 4.50 A. MW (Cu) = 63.55 g/mol /MW (Br2) = 160 g/mol & n = 2 mol e-
How many grams of antifreeze (C_2 H_4(OH)_2) would be required per 500 g of water to prevent the water from freezing at a temperature of -27 degrees celsius? answer in units of g.
explain what would happen to the cell during the process of osmosis and why?
How many kilowatt-hours of energy are necessary to heat the air in the house from 5degree C to 25degree C
The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy
The specific rotation of a compound is defined as the observed rotation of the compound when its concentration is 1 g/mL in a sample tube which is 10 cm long. If a certain compound is observed to have a specific rotation of +8.0°
a student used a pH probe that was not properly calibrated. the probe reads the pH one unit higher than it should be. what would the calculated Ka value of the unknown acid
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