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Octane or C8H18 (l) is a component of gasoline. If 35.0 mol O2 (g) in the air is used to burn a sample of octane completely.
a) How many grams of carbon dioxide gas are produced?
b) How many grams of water are produced from 54.0 grams of octane?
Calculate concentration of NaClO solution from that equation and calculate How many grams of this nuclide in a sample of 4.00 g will remain after 112 years?
A solution of I2 was standardized with ascorbic acid Using a 0..1 g sample of pure ascorbic acid, 23.52 mL of I2 were required to reach the starch end point.
calculate (a)molality? (b)molarity of NaCl? (c) What is the mass/mass and remove the most loosely held e- from a gaseous atom in a ground state
Calculate the fraction of space that is occupied by packing spheres in the (a) simple cubic, (b) body-centered cubic, (c) face-centered cubic (close packed) structures
What is the molar mass of the unknown compound if the solution has a freezing point of -5 oC?
At 123?C, the pressure of a sample of nitrogen is 1.45 atm. What will the pressure be at 267?C, assuming constant volume?
Calculate the overall energy changes (in kJ/mol) for the formation of MgF and MgF2 from their elements. The lattice energy for MgF2 is + 2952 kJ/mol.
What is the concentration of the acid and base form of acetic acid when you start the experiment? c) In the process of the enzyme catalyzed reaction, 5mM H+ is produced. What is the pH of the solution after the reaction is complete?
A 50.0 mL sample of 0.55 M benzoic acid, C6H5COOH, a weak monoprotic acid, is titrated with 0.47 M NaOH. Calculate the pH at the equivalence point. Ka of C6H5COOH = 6.5 10-5
when a blue copper(II)nitrate solution is mixed with a colorless solution of sodium sulfide
If 10500 L H2 gas is reacted with an excess of N2 gas at 200 atm. and 500 C, how many moles of ammonia gas would be produced, assuming a 15% yield?
How much of 2,4 hexadien-1-ol would you need to react with 98 mg of maleic anhydride in a Diels-Alder Reaction? (Assume a 1:1 molar ratio of maleic anhydride to 2,4 hexadien-1-ol)
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