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How much heat in kilojoules is evolved or absorbed in the reaction of 244.0g of calcium oxide with enough carbon to produce calcium carbide?
CaO(s) + 3C(s)---> CaC2 (s) + CO(g) Delta H = 464.6 KJ
Is the process exothermic or endothermic?
What mimimum hydronium ion concentration (M) would be needed to prevent precipitation of cupric hydroxide (Cu(OH)2 Cu2+ + 2OH- , Ksp = 2.2 x 10-20) from a solution containing 0.010 M Cu2+ ion?
PH of Acetylsalicylic Acid, The active ingredient in aspirin is acetylsalicylic acid (HC9H7O4), a monoprotic acid with a Ka = 3.3x10-4
When 2-methylpropene is treated with sulfuric acid the resulting mixture can be used to convert benzene to tert-butylbenzene
At atmospheric sample is composed of nitrogen, oxygen, argon, water vapor, and trace other gases. If the partial pressure of nitrogen is 577 mmHg, oxygen is 148 mmHg, water vapor is 20 mmHg and argon is 7 mmHg, what is the observed barometric pres..
Determine the molecular weight of a compound given the gas phase data: mass of 11.8 g, temperature of 39.1 C, pressure of 630 torr, volume of 1.31 L.
Consider the following reaction: CO(g)+H2O(g)in equilibrium with CO2(g)+H2
The balloon is blown up with air from a starting volume of 1 m3 to a volume of 3 m3. Find the final mass of air assuming it is at 25oC and the work done by the air
Enzymes in the human liver catalyze a large number of reactions that degrade ingested toxic chemicals. By what factor is the rate of a detoxification reaction changed
A dilute electrolyte solution is prepared by dissolving iron(lll) chloride in water. It is found to have a freezing point of-1.00C.
how many grams of solute are in the solution 498 mL of a.850 M Na2So4?
What would be the product if D2O were added to a Grignard reagent such as phenylmagnesium bromide? Is this type of product in Grignard
Solve an equilibrium problem (using an ICE table) to calculate the pH of each solution:a solution that is 0.165M in HC 2 H 3 O 2 and 0.120M in KC 2 H 3 O 2.
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