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A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon by mass. What is the empirical formula of this compound?
Backside attack on the bromonium ion by a bromide ion results in a trans products. The bromine is added to opposite sides of the carbon-carbon double bond.
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3(s) => MgO(s) + CO2(g) ?Hrxn = 117.3 kJ What is ?H in kJ when 41.56 g of CO2 reacts with excess MgO
Consider the combustion reaction of acetylene (C2H2), H2O(l) is one of the products. Which of the following statements are correct? Choose all that apply.
A volume of 18.0 L contains a mixture of 0.250 mols N2 , 0.250 mols O2 , and an unknown quantity of He. The temperature of the mixture is 0 degrees C , and the total pressure is 1.00 atm.
Calculate the concentration of a red dye solution with an absorbance of 0.617. If you have 5.78ml of the solution how many mg of red dye are found in the solution.
Which salts are more effective for cold and hot packs, KNO3, NH4NO3, MgSO4, CaCl2, MgCl2? which are most cost effective? Maximum and minimum T for both?
For a certain reaction, = 8.38×10?4 and 9.24×10?5 . Calculate the value of the reverse rate constant, , given that the reverse reaction is of the same molecularity as the forward reaction.
Consider a voltaic cell which has a copper electrode immersed in a solution of copper (II) sulfate and a zinc electrode immersed in a solution of zinc sulfate. determine Eocell. If the concentration of zinc sulfate is 10 times greater than the con..
Twenty-five milliliters of liquid nitrogen (density = 0.807g/mL ) is poured into a cylindrical container with a radius of 11.9cm and a length of 17.2cm . The container initially contains only air at a pressure of 760.0mmHG (atmospheric pressure) a..
Draw the configurational isomers of 1-bromo-4-methylcyclohexane. (b) Draw the conformational isomers of the structures drawn in (a).
If the partial pressures of N2, O2 and NO at equilibrium are 1.5 atm, 2.5 atm and 0.75 atm respectively, what is the equilbrium constants
Choose the element with the more negative (more exothermic) electron affinity from each of the following pairs.
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