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If a student performs an endothermic reaction in a calorimeter, how does the calculated value of delta H differ from the actual value if the heat exchanged with the calorimeter is not taken into account?
Delta H(calc)would be more negative because the calorimeter always absorbs heat from the reaction
Delta H(calc)would be less negative because the calorimeter would absorb heat from the reaction.
Delta H(calc) would be more positive because the reaction absorbs heat from the calorimeter
Delta H(calc)would be less positive because the reaction absorbs heat from the calorimeter
Delta H(calc)would equal the actual value because the calorimeter does not absorb heat
If 145.0 mL of 0.350 M lithium hydroxide is required to titrate 35.0 mL of an unknown monoprotic acid, what is the molar concentration of the unknown acid.
Titration of the excess unreacted EDTA required 11.6 mL of 0.0200 M Ca2 . The Cd2 was displaced from EDTA by the addition of an excess of CN-.
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It is often useful to be able to anticipate, without doing a detailed calulation, whether an increase in temperature will result in a raising or a lowering of a reaction enthalpy.
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The molar solubility of lead(II) iodate in water is 4.0 ? 10-5 mol/L. Calculate Ksp for lead(II) iodate
A piston at 7.4 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 1.27 L
a solution of copper sulphate cuso4 was electrolyzed between copper electrodes. copper of 6.4 grams was deposited on
Calculate the internal energy amd ethalpy changes that occur when air is changed from an initial state of 40 0F and 10 atm, where its molar volume is 36.49
a sealed balloon is filled with 1.40 l of helium at 23degc and 1.00 atm. the balloon rises to a point in the atmosphere
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