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A 5.668 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 12.21grams of CO2 and 5.001 grams of H2O are produced.
In a separate experiment, the molar mass is found to be 102.1 g/mol. Determine the empirical formula and the molecular formula of the organic compound.
0.101 M HNO2 solution contains 0.0067 M H+ ions at 25 oC. What is the percent ionization of this acid under these conditions
While 25mL of 0.10 mol/L HBr(aq) is titrated with 0.10 mol/L NaOH(aq), explain what is the pH at the equivalence point. Choose an appropriate indicator.
Concentrated hydrochloric acid is an aqueous solution that is 37.2 % HCl. The density of the solution is 1.19 g/mL.
A voltic cell with an aqueous electrolyte is based on the reaction between Cd2+ (qu) and Mg(s), producing Cd (s) and Mg2+. Write a balanced cell reaction.
Methane undergoes the combustion, as shown in the chemical equation below. Using bond energies, estimate the energy change for this reaction. Please use the correct bond energy for the CO bond in CO2
what would happen to the average kinetic energy of the molecules of a gas sample if the temperature of the sample
Determination of an equilibrium constant Solution A-1 contain only FeNO3 and HNO3. Because no KSCN is present, no (FeSCN)+2 is produced. This solution is used as the reference sample.why don't we use water as the reference sample.
Write chemical equations for the reaction of fluorine with the following substances, making sure that the numbers and kinds of atoms are the same on both sides of the equations. If no reaction occurs, write noreaction
an experiment requires 42.0 of ethylene glycol a liquid whose density is 1.114 . rather than weigh the sample on a
how many grams of sodium benzoate should be added to prepare the buffer?
Which solvents are the best for trimyristin: methanol,, acetone, cyclohexane,, dichloromethane or diethyl ether. How would you rank the solubility of each compound
Why would the cell potential be higher with the addition of 6 M Na2S solution to .001 M of CuSO4 (compared to 6 M NH addition to .001 M CuSO4)
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