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Urea nh2 co is prepared by reacting ammonia with carbon dioxide. the by product is water. 637.2g of ammonia are reacted with 787.3g of carbon dioxide. which of the two reactant is a limiting reactant?
a large cylinder of He gas,such as that used to inflate balloons,has a volume of 25.0 L at 22c and 5.6 atm. How many moles of He are in such a cylinder
2.50 moles of COBr2 are introduced into a 2.00 liter flask at 0degrees and heated to a temp of 73 degree celcius. At equilibrium, the equilibrium constant is .190. What is the percent disassociation? what is the equilibrium concentration of each s..
The isomerization of cyclopropane to form propene is a first-order reaction. At 760 K, 85% of a sample of cyclopropane changes to propene in 79.0 min. Determine the rate constant for this reaction at 760 K
Consider one kmol of methane at a pressure of 23.2 bar and a temperature of 200 K. Is this methane an ideal gas? Show or describe how you reached this conclusion
A mixture of camphor and water boils at approximately 99.1?C. At this temperature the vapour pressure of water is 736 mmHg. Calculate the percentage of camphor and water in the steam distillate by number of moles.
Suppose that the solvent ethanol could serve to replace the methanol in this process, but at the expense of double the concentrations of the solvent in the atmosphere.
A 35.0 mL sample of 0.150 M acetic acid (CH3COOH) is titrated with 0.150 M NaOH solution. Calculate the pH after the following volumes of base have been added.
Calculate the molality H3PO4 in the solution and Water is the solvent and the molarity of H3PO4 in the solution and the number of ml of the 85% H3PO4 that is required to make 800 ml of 2.00 M H3PO4?
The US consumed 18.8 million barrels (Mbbl) of crude oil per day in 2009. The BP Gulf Oil Spill totaled roughly 200 million gallons of crude oil.
Why is it possible to add up different balanced chemical equations to form a particular chemical equation and calculate its Kc from multiplying the Kc values of the different equations?
How many grams of (NH4)2SO4 should be present to prevent precipitation of Mg(OH)2 (s). The Ksp of Mg(OH)2 is 1.8x10^-11.
If a 10.00mL sample of unknown concentration of HF is titrated with 28.94mL of 0.1040M NaOH
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