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At a temperature of 25 degree celsius and a pressure of 757 mm Hg the product gas, H2, is collected over H2OThen calculate the number of grams of H2 formed If the wet Hydrogen gas formed occupies a volume of 9.67 Litres (The vapor pressure of water =23.8 mm Hg at 25 oC).
Methanol (CH3OH) can be decomposed to form hydrogen gas and carbon monoxide gas. If 125 grams of methanol is decomposed, and 13.6 grams of hydrogen gas is produced, what is the percent yield of hydrogen gas in this experiment
What is the purpose of adding sodium sulfate to the organic layer after all of the extractions are complete?
What is the enthalpy change for the reverse reaction. Hreverse = kJ/mol. (b) Balance the forward reaction with whole-number coefficients. What is H for the reaction represented by this equation? H = kJ/mol.
Assuming that the initial pressure of X(2)(the 2 is at the bottom) was 0.10 bar, calculate the value of K for the decomposition.
How many kilocal are required to increase the temp of 15.6g of iron from 122C to 355C? the specific heat of iron is
Ionization energy is the energy needed to eject an electron from an atom. Compute the ionization energy of a hydrogen atom in its first excited stat (n=2)
calculate the volume percent and the proof of the ethanol in the unknown solution based on this mass percent. Use the graph from the Introduction that plots the density of ethanol solutions from 20 to 60 mass percent to answer the following questi..
using p-aminobenzoic acid give equations showing how procaine and procaine monohydrochloride could be prepared. which
A 120 pound woman working in an office consumes about 2200 kcal/day, whereas the same woman climbing a mountain needs 3400 kcal/day.
hydrogen peroxide usually comes commercially as a 30 wv aqueous solution with a density of 1.106 gml. calculate the
What is the pH of a buffer that results when 0.40 mol NaHCO2 is mixed with 100.0 mL of 2.00 M HCl and diluted with water to 250 mL (Ka of HCO2H=1.8*10^-4.
which of the following processes are at equilibrium? a)opposing rates of reaction are equal. b)the rate of the forward reaction is faster than the rate of the reverse reaction. c)concentrations of reactants and products do not change.
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