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An aqueous solution contains 25.0g of glucose, C6H12O6, in 300.0 mL solution. The density of this solution is 1.08 g/mL. Calculate the molarity, molality, weight percent, and mile fraction of the glucose solution.
For a solution that is 0.282 M NH3 and 0.117 M NH4NO3, calculate the following. For NH3, Kb is 1.8x10-5. Enter [OH?] and [H3O+] with two significant digits. Enter scientific notation as 1.23E4.
Our book shows a radioactive decay series in which a sample that starts out as U-238 eventually winds up becoming non-radioactive Pb-206. The half life for this process is extremely long, being 4.51 x 10^9 years. Consider a radioactive mineral sam..
Calculate the mole fraction of each component in resulting mixture after oxidation assuming that H2O is present as a gas.
If the bonding in Nb metal is described used band theory, what fraction of the band would be filled with electrons? Assume that all valence bands (5s, 4d, and 5p) overlap
For the Reaction CO(g) + Cl2(g) -> COCl2(g), the rate constant increases 1500 times when the temperature rises from 150C to 250C. Calculate the activation energy, in kJ/mol, for this reaction. Assume frequency factor is constant for both temperatu..
a solution containing 16.9 g of nonvolatile molecular compound in 250. g of water has a freezing point of -0.744c. what
What molarity of aqueous calcium chloride solution can be expected to show the same conductivity as 0.0050 M aluminum sulfate at 12,500 units.
Describe how to prepare 0.200 L of 0.450 M HCl solution, starting with a 2.00 M HCl solution. What volume (in L) of the 2.00 M solution
Suppose that a sample of gas occupies 192 mL of volume at 25C and a pressure of 206 torr. What would be the volume if the pressure were changed to 506 torr at 25C.
Write and balance the equation for the reduction of iodate by hydrogen sulfite ions to give iodide and sulfate in basic
Consider two jars. One jar contains 100 blue spheres, and the other jar contains 25 each of red, blue, green, and yellow colors mixed together. If you were to remove 30 spheres from the jar containing the mixture (assume you get a representative d..
Calculate the H+ ion concentration in a 8.8 × 10-4 M Ca(OH)2 solution. A) 8.8 × 10-4 M D) 1.1 × 10-11 M B) 1.8 × 10-3 M E) 5.7 × 10-12 M C) 2.2 × 10-11 M
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