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Calculate the freezing point and boiling point of a solution containing 12.4 g of naphthalene (C10H8) in 103.0 mL of benzene. Benzene has a density of 0.877 g/cm3. Calculate the freezing point of a solution. (Kf(benzene)=5.12°C/m.). Calculate the boiling point of a solution. (Kb(benzene)=2.53°C/m .)
If there is .327g of an unknown metal and it reacts with 10 mL of 1.00 M of HCl, what is the molar mass of the unknown metal
Calculate the number of ml of .0050M NaOH that will need to titrate 75.0ml of hydrochloric acid originally at a ph of 3.5
Problem- Calculate the mass of methane that must be burned to provide enough heat to convert 220g of water at 49*C into steam at 107*C (assume that the h20 produced in the combustion reaction is steam rather than liquid water)
chemical kinetics - determine the time taken by a reactant to reach a particular concentration knowing the rate
The main reason that distillation is a costly method for purifying water is the high energy required to heat and vaporize water. Using the density, specific heat and heat of vaporization of water from Appendix B, calculate the amount of energy requ..
half-life equation for first-order reactions t120.693k where t12 is the half-life in seconds and k is the rate
why is the Lineweaver Burke plot superior to the Michaelis- Menton plot for calculation enzyme kinetic values
With aqueous H2CrO4, compound A was oxidized to an optically inactive dicarboxylic acid C, C6H10O4. Give structures for compounds A, B, and C; do not specify stereochemistry
twenty grams of a solute is added to 100g of water at 25 degrees c. the vapor pressure of pure water is 23.76mm the
What is the value of the equilibrium constant at this temperature for the reaction of SO2 with N2O to form SO3 and N2 (balanced with lowest whole-number coefficients)?
When using dichloromethane as a solvent, which would make a good, yet cost effective, drying agent?
A certain substance has a heat of vaporization of 39.85 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.50 times higher than it was at 335 K?
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