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At 1 atmosphere of pressure, 25.0g of a compound at its normal boiling point are converted to a gas by the addition 34,000 J. What is the heat of vaporization for this compound in J/g?
Determine the balanced chemical equation for this reaction. CaH18(g) + O2(g) > Ca2(g) + H2O(g) Enter the coefficients for each compound in order, separated by commas
If 10.7 mL of .110 M NaOH is required to reach the equivalence point of a solution of citric acid, how many mL of NaOH are required to completely neutralized this solution
Calculate pCu at the equivalence point in the titration of 20.0 mL of 0.0161 M CuSO4 with 0.0100 M EDTA at pH 8.00.
A calorimeter is not a perfect insulator. For a reaction that is endothermic, will the reported (delta)H be too high, too low, or unaffected if the heat exchange with the calorimeter is ignored
What is the balanced chemical equation for the reaction used to calculate Delta H f of SrCO3(s) ? If fractional coefficients are required, enter them as a fraction
Would applying a high pressure stabilize the CsCl form, or the NaCl form of this compound? (hint: calculate the volume per formula unit)
What is a variable which has no effect on the rate of a chemical reaction under any circumstance is
a solution contains 55 grams of ascorbic acid in 250 g of water freezes at -2.34 degrees C. calculate the molar mass of the solute
Calculate the energy and the wavelength, in nanometers, of light emitted when an electron in an excited hydrogen atom
Calculate the volume of oxygen required to burn 5.00L of propane gas, C3H8 to produce carbon dioxide and water, if the volumes of both the propane
why are we given a known and unknown hydrate. what is the point of having a known sample. why is it important. do scientists give is a more 'generic' name, if so, what would a scientist call the known
Complete the following reaction: Pb-210 decays by ? (beta) emission to form what new necleus? Write the complete nuclear equation.
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