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How much heat is required to boil away 1.1 kg of water that has an initial temperature of 212° F? (Hint: latent heat of vaporization 2,260 kJ/kg)
Show that, after as much gas as possible has leaked out during time interval t, the change in internal energy isΔU = εIt - P0(nv0 - V),
A compound that contains only C and H was burned in excess O2 to give CO2 and H2O. When 0.270 g of the compound was burned, the amount of CO2 formed reacted completely with 20.0 mL of 2.00 M NaOH solution according to the equation:
Explain why the element bromine prefers to have its two atoms form covalent bonds rather than ionic bonds
if the reaction is not in equilibrium for the conditions in part a, calculate the pH at which the reaction will be at equilibrium if MNO4 = 10^-10 M.
A chemist makes up a solution of 0.375 mol Na2CO3, 0.125 mol Ca(NO3)2, and 0.200 mol AgNO3 in 2.000 L of water solution. Calculate the molarities of each ion left in the solution after mixing
What are the mass percentages of Ne and Kr?
The student plotted pH versys volume (mL) of NaOH added and found the titration required 26.66mL of NaOH to reach equivalence point. Describe how you would use the students titration curve to determine the K(a) value for formic acid.
what is the change of enthalpy in condensing 15.0 g of water at 100 degrees C at constant pressure.
The gas-phase dipole moment of the hydroxyl radical
Consider the 1H19F molecule. The bond length of 1H19F is 91.7 pm. The wavenumber of light associated with a transition from the ground vibrational state to the first excited state is 1159.18 cm^-1.
The ideal gas law describes the relationship among the pressure P, volume V, number of moles n, and absolute temperature T of an ideal gas.
The vapor pressure of water above this solution is found to be 0.3626 atm at 348.0 K. The vapor pressure of pure water at temperature is 0.3804 atm. Determine the value of the van't Hoff factor i for magnesium chloride in this solution
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