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Calculate the change in enthalpy of reaction for two moles of CO(g) reacting with one mole of O2 (g) to form CO2(g). The molar heats of formation for each of these gases are CO -110.5 KJ/mol, O2 .0kJ/mol CO2 -393.5 Kj/mol
Which one of the following actions will cause an increase in the equilibrium concentration of NO(g) in a closed reaction chamber?
calculate the volume of air at 35 degrees Celsius and .96 atmosphere that is needed to burn completely 12.51 grams of pentane
Determine at what temperature should the reaction be run to get a seventy five conversion of carbon monoxide?
The barium salt was found to have two mole of water of hydration per Ba ion and the acid is mono basic. What is molecular weight of anhydrous acid.
Calculate the energy in joules and calories required to heat 5.25 g of water from 5.5 oC to 64.8 oC.
A solution is initially 2.5 x 10-3 M in Cu+ and 2.5 x 10-3 in Pb 2+. Iodine ion is gradually added to the solution. Determine the concentrations of Cu+, Pb +2, and I- at the point of maximum separation. The solubility products of CuI and PbI2 are ..
Write the complete balanced equation for the formation of iron(III) hydroxide precipitate from a solution of iron(III) nitrate.
how much energy is required to vaporize 98.6 g of ethanol at its boiling point if its Hvap is 40.5 kj/ mol ?
When sodium carbonate reacts with hydrochloric acid, the carbonic acid that is formed immediately breaks down into carbon dioxide and water. What weight of sodium carbonate would have been present originally
The half-life for the reaction at 550C is 81.3 seconds. How long does it take for 89% of phosphine sample to decompose?
The Bracket series of emission lines falls in the infrared region of the em spectrum, and each line is a result of an electron falling from a higher Bohr orbit to the n=4 level.
Determine the limiting reactant and also calculate how much of the gas is produced?
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