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How much energy (in kilojoules) is released when 13.4 of steam at 122.5 is condensed to give liquid water at 71.5? The heat of vaporization of liquid water is 40.67 , and the molar heat capacity is 75.3 for the liquid and 33.6 for the vapor
sodium hydrogen carbonate how do I figure out how many moles of carbon dioxide are in the balloon? The circumference of the balloon is 5.89 cm.
how many calories are used to heat a 50g sample of water from 8.1 degrees celius to 27.4 degrees celcius?
A sample of vanadium haveing 5.67 grams of mass upon heating combined with oxegen of 4.45gramsto make vanadium oxide. Determine the emperical formula for this compound?
Acetylene gas, , burns in oxygen to produce carbon dioxide and water. If 60.4 g of CO2 are produced when 22.62 c2h2 react with sufficient oxygen, what is the percent yield for the reaction
c2h2g2h2g-gt c2h6gc2h2- delta h 226.7c2h6- delta h -84.7a.write the equation for the heat of formation of c2h6gb. use
Write charge and mass balances for aqueous Ca3(PO4)2if the species are Ca2+, CaOH+, CaPO4-,PO43-, HPO42-, H2PO4-and H3PO4
carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases phosgene and chlorine.ccl4g
a researcher requires 20l if a buffer solution with pH=4.25. How many moles of formic acid, and sodium fomate, could be dissolved in the solution to make this buffer, if none of the equillibrium concentrations should be under 0.100M?
F2 to give a nickel fluoride. Density of nickel is 8.908 g/cm3. How many moles of nickel foil were used? If you isolated 1.261 g of nickel fluoride, what is its formula
Starting with 2.5 grams of vitamin D3 and 10mg of palladium catalyst, how many millimoles of H2 will be necessary to hydrogenate all of the Carbon Carbon double bonds in D3?
Calculate the time in hours which would have been required for 99.9% of the t-butyl chloride to hydrolyze, if the reactant had been allowed to proceed without the addition of extra water or heating
Complete and balance the following reaction as a molecular reaction. also label each t with aq for aqueous, s for solid, and g gor g. Kbr+Cl2
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