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After calculating their boiling points, place the following aqueous solutions in order of highest boiling point to lowest boiling point. You must show all work in detail to receive credit: 0.1 m NaCl, 0.05 m Na2S, 0.08 m C6H12O6. (Kb for water = 0.512 C*kg solvent/mol solute, and all numbers immediately following elemental symbols are to be understood as subscripts)
A sample of lead releases 221 kJ of heat when freezing. What is the mass of the sample? DHfus = 23 J/g
A green leaf has a surface area of 2.10 cm^2. If solar radiation is 1150 W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
Consider three different compounds of the hypothetical element X using the table of bond lenghts as a reference, rank the three compounds shown below in order of increasing
Which of these is not a protease that acts in the small intestine?
calculate the number of moles of KOH in 5.50 mL of a 0.360 M KOH solution.What is the pOH of the solution?
If the volume of solute is 6 ml and the volume of the solution is 300 ml, what is the solute's percent by volume?
What would you expect to observe when adding one drop of iodine-potassium iodine reagent to each of the four carbohydrates?
The reaction of copper metal with silver ions in a solution if silver nitrate is spontaneous . Calculate she standard cell potentiom to show that this is so.
Calculate the kinetic energy of the goose in joules if the goose has a mass of 16.8lb (pounds) and is flying at 10.3miles/h (miles per hour). ?
How many grams of hydrogen chloride can be produced from 350 grams of sodium chloride and 290 grams of hyroden sulfate if the reaction has a yield of 88%?
A reaction mechanism involving three steps is shown below. Identify all of the catalysts in the following mechanism.
Calculate the mass of KI in grams required to prepare 5.00x10^ 2mL of 3.2 M solution.
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