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A half-cell containing which of the following metals would produce the greatest emf when it is coupled with a half-cell containing aluminum metal?
ZnNiMgAgCr
What is the minimum amount of hydrogen gas in grams required to completely hydrogenate 12.5 Kg of 2-butene?
Calculate the "molar heat of dissolution" (kJ/mol). Recall heat capacity of water is 4.184 J/g degrees celsius.
Chemical reactions are typically faster when a catalyst is added. This is because... 1. Molecules are moving faster when a catalyst is added
A sample of 0.255 mole of gas has a volume of 748 mL at 28°C. Calculate the pressure of this gas. (R= 0.0821 L · K)
Calculate the van der waals correction terms to pressure and volume for Cl2 at STP. The values of the van der waals constants a and b are 6.49L^2-atm/mol^2 and 0.0562 L/mol,
Which one of the following molecules has a zero dipole moment? A. CO B. CH2Cl2 D. SO2 C. SO3 E. NH3 67. Indicate the type of hybrid orbitals used by the central atom in CCl4. A. sp B. sp2 C. sp3 D. sp3d E. sp3d2 68. What is the hybridization of th..
How many reducing ends are in a molecule of corn starch (amylopectin) that contains 200,000 residues with a branch every 100 residues? Explain
if 525 g of NaOH are dissolved to a final total of 50.0L what is the molarity of the solution
How many grams of ethyl alcohol, C2H5OH, must be added to 1.000 kg of water so that the solution will not freeze until -20 degrees Celsius? For water, Kf=1.86 degrees Celsius/m
The heat of vaporization of water in this temperature range is 2.40 kJ/g. The heat capacity of water is 4.184 J/g.K. Answer in grams of water
The molarity (moles/L = M) of a solution of 4.0 g NaOH in a total volume of 100.0 mL (or 40 g in 1.0 L) is what?
What is the pressure inside a 5.00 L vessel containing 0.0040 mol of nitrogen gas at a temperature of 23 degrees C
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