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3H2(g) +N2(g)<===>2NH3 (g)What volume of ammonia gas could be produced at 100% yield when 3.7 moles of hydrogen reacts with 1.3 moles of nitrogen?
a tank of helium gas at 25 degrees celcius has a pressure of 100atm and a volume of 50 liters how many 10 liter helium
Compare the rms speeds. Compare the average kinetic energy. -Consider equimolar samples of the same ideal gas at the same temperature, but different volumes. Sample A has a larger volume than Sample B
After the reaction was complete, the solid residue (consisting of MgO and the original impurities) had a mass of 19.0732 g. Assuming that only the magnesium carbonate had decomposed, how much magnesium carbonate was present in the original sample
Which compounds in problem are isomers? a)2-methylpropane b)2,4-dimethylpentane c)2,2-dimethylpentane d)4-ethyl-2-methylhexane e)2,3-dichloro-4-t-butylheptane f)4-ethyl-7-isopropyl-2,4,8-trimethyldecane g)4-isobutyl-3,4-dimethyl-5-sec-butyloctane..
How many grams of carbon monoxide (CO) are produced from a mixture of 70.0g SiO2 and 50.0 g of carbon. The balance ewaution is given below.
A calorimeter is not a perfect insulator. For a reaction that is endothermic, will the reported (delta)H be too high, too low, or unaffected if the heat exchange with the calorimeter is ignored
helium has a density of 1.79 x 10-4 gml at standard temperature and pressure. a balloon has a volume of 6.3 liters.
Why should you store the crucible plus sample in a desiccator after heating and before weighing? why should you heat the sample to constant mass?
condensed form in order of increasing orbital energy as a string without blank space between orbitals.
Calculate the equilibrium constant for the following reaction at 298K and biological standard state: CH3CHO +NADH +H+ --> C2H5OH + NAD+ E° ?= -0.197V for the CH3CHO/ C2H5OH couple.
The dilution of the buffer should not change the pH of the buffer by very much. Explain why not.
What mass of magnesium, in reaction with an excess of hydrochloric acid, is needed to produce 128 mL of hydrogen (H2) gas. The H2 gas is collected over water at a temperature of 25°C and a total pressure (PBR) of 762 mmHg
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