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How many moles of sulfur dioxide, SO2 are contained in a 5.0 L container at STP?
.223 mol.497 mol.0769 mol.112 mol
The heat of vaporization of 1.0 mole of water at 100°C and 1.0 atm is 40.6 kJ. Calculate the change in entropy for the process H2O(l) → H2O(g). Document your work here.
3H2+N2=How many grams of NH3 can be produced from 3.91g of N2?
a sample of methane of mass 4.5 g (4.5g(1mol/16.04g)=.2804mol) occupies 12.7 L at 310K. a) Calculate work done when the gas expands isothermally (delta T=0) against a constant external.
the hybridization of Carbon in this molecule? b) What would be its molecular shape? and c) What is the bond angle around the C atom?
how many grams of potassium permanagate are needed to discolor 1 gram of 2-pentene in basic solution.
How many moles of gas are in a container that is 2.00 L, at 30.0 atm and a temperature of 25.0 C?
Prepare the journal entries that should be recorded in 2011 relative to the premium plan and premium Entries to stimulate the sales of its Alladin breakfast cereal, Loptien Company places 1 coupon in each box. Five coupons are redeemable for a prem..
Cells use the hydrolysis of adenosine triphosphate, abbreviated as ATP, as a source of energy. Symbolically, this reaction can be represented as ATP(aq) + H2O(l) ? ADP(aq) + H2PO4-(aq)
How should the $10,000,000 of commercial paper be classified on the December 31, 2010, January 31, 2011, and February 28, 2011, balance sheets and What would your answer be if, instead of a refinancing at the date of issuance of the financial stat..
Which of the following industries is most likely closest to achieving perfect price discrimination? Which of the following is an example of a natural monopoly?
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
Describe the development of the modern periodic table. Include contributions made by Lavoisier, Newlands, Mendeleev, and Moseley.
The pH of a bicarbonate-carbonic acid buffer is 6.95. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-)
The molar heats of sublimation and fusion of iodine are 62.3 kJ/mol and15.3 kJ/mol, respectively. Calculate the molar heat of vaporization of liquid iodine.
In some solar-heated homes, heat from the sun is stored in rocks during the day and then released during the cooler night. (a) Calculate the amount of heat required to raise the temperature of 78.7 kg of rocks from 25.0°C to 43.0°C.
For a current of 360 A at 3.67 V, how much electrical energy (in kw-hr) is consumed in the production of 1 kg of aluminum? (A kW-hr is 3.6 x106 J.)
If 15.78 mL of a Na2S2O3 solution were required to titrate the iodine formed from 20.95 mL of a 0.0111 M KIO3 solution and excess KI, what is the molarity of the Na2S2O3 solution?
Rate Constant with Temperature Changes, Rearrangement of methyl isonitrile to acetonitrile has activation energy of 25.0 kJ/mol and a rate constant of 8.1*10^-4s-1 @ 80 Celsius.
A gaseous mixture of O2, H2, and N2 has a total pressure of 1.50 atm and contains 8.20 g of each gas. Find the partial pressure of each gas in the mixture.
How many moles of Ba(OH)_2 are present in 255 mL of 0.800 it M Ba(OH)_2?
The white precipitate obtained when cold HCl was added to an unknown solution was completely insoluble in both hot water and NH4OH
a quantity of water is heated from 25.0 C to 36.4 C by absorbing 325 joules. what is the mass of the water?
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