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What volume of carbon dioxide measured at STP will be formed by the reaction of 1.43 mole of oxygen with 0.900 mole of ethyl alcohol?
The speed needed to escape the pull of Earth's gravity is 11.3 km/s. What is this speed in mi/h.
we place an excess ( more than can dissolve) of PbCl2 into 100 ml. of water and find that at equilibrium [Cl]=0.032 M . Calculate kc for the following reaction : PbCl2 = Pb+2Cl
octane has a density of 0.692g/ml at 20C. How many grams of O2 are required to burn 30.5 gal of C8H18
Which of the following terms would be used in a description of the mechanism of this reaction? tertiary carbanion, 2-methylpentoxonium ion, sp hybridized pentyne, vicinal dihydroxide, or hydroxide ion.
what mass of solid sodium formate (of mw 68.01) must be added to 105 ml of 0.55 mol/l formic acid(HCOOH) to make a buffer solution having a ph of 3.96? ka=0.00018 for HCOOH
An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. What is the molarity of silver nitrate in the solution?
A 55.0-{ g} piece of ice at 0.0 C is added to a sample of water at 8.0 C. All of the ice melts and the temperature of the water decreases to 0.0 C.
Estimate the average concentration of methylene chloride. Look up the TL V or the 1WA for methylene chloride and consider how the: evaporation might be performed.
How many moles of oxygen atoms are combined with 4.20 moles of chlorine atoms in Cl2O7?
the balloon reaches an altitude of 100m, where the pressure was 658 mmHg and the temperature was -8c. what was the volume in liters of the ballon at these conditions?
What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water
Ionization energy is the energy required to remove an electron from an atom in the gas phase. The ionization energy of lead is 715.0 kJ/mol.
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