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A 7.31 liter sample of a gas at 50 degrees celsius and 2.82 atm pressure is subsequently compressed to 0.546 liters. in response to being compressed, teperature increases to 72 degrees celsius. what is the pressure of the gas after compression.
how many grams of potassium formate khcoo must be added to 500. ml of 0.0700 m solution of formic acid hcooh to produce
many cigarette lighters contain liquid butanec4h10l. using standard enthalpies of formation calculate the quantity of
A 6.55mg/L solution of benzoic acid has an absorbance value of 0.621 at 230 nm in a 1.00cm cell. in units of M^-1*cm^-1, what is the molar absorptivity of benzoic acid at 230nm?
a backpacker wants to carry enough fuel to heat 2.2 kg of water from 30 c degree to 100.0 c degree. if the fuel he
The fluorescence of the diluted sample solution was found, by the working curve method, to correspond to a salicylate ion concentration of 4.80 x 10^-5 M. Calculate the % acetylsalicylic acid in the aspirin tablet.
If solutions of NH4Cl (aq) and NH3 (aq) are mixed, which ions in the resulting solution are spectator ions in any acid-base chemistry occurring in the solution
how many pi bonds are there in a molecule of crotononitrile?how many sigma bonds are there?how many nonbonding valence
Write the chemical equation for the formation of HBr from H and Br atoms. Lone pairs do not need to be included. Using the table of bond energies determine the ?H for the above reaction. (KJ/Mol)
Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid. What is the molar concentration of {H_3O^+} in a cola that has a pH of 4.240? Express your answer with the appropriate units
What type of rotation axis does the structure have parallel to the [0 0 1] direction and show the location of this axis in a [0 0 1] projection of this crystal structure?
Consider a mixture of ingrediants at equilibrium for this reaction. 2 PH3 (g) P2 (g) + 3 H2 (g) Which of these is true if the container volume
How many liters of dry carbon dioxide gas, measured at standard conditions will be evolved when 400 mL of a 0.20 M sulfuric acid are treated with an excess of potassium carbonate
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