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A certain first order reaction A->B while performed at 25 degree C is 25% complete after 42 min. Explain what is the rate constant of this reaction?
Determine the range of fat you might expect to obtain if you extracted fat from ten grams of nutmeg (Dried, ground nutmeg typically contains between 20-25% fat by weight.) Assume that your extraction is 95% effective.
the addition of 3g of a substance to 100g of ccl4density 1.58gml raises the boiling point of ccl4 by 0.6 degrees.
The amount of moles of iron (III) chloride utilized to prepare 400mlof stock solution (is is 0.02 mol * L-1. Explain what is the concentration of the iron (III) chloride stock solution
A flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 50.0 mL of 0.230 M NaOH. what volume of NaOH is needed to reach the end point of the titration
Assume that a membrane channel obeys the concerted allosteric model with Hill coefficient 2.5. In the presence of 12? M ligand, the ratio of opened to closed channels is 0.2. Explain what is the fraction of opened channels in the presence of 0.1 m..
What mass of NaCl is needed to react with 35.0 mL of the same AgNO3 solution?
distillation was performed. 3 fractions of a mixture of octane amp hexane were taken. as well as 3 fractions of a
Discuss the trend in ion size within a family and a period and put a group of ions in order of increasing (decreasing) ion size and explain the difference between atom and ion size of an element.
Students at the University of North Texas and the University of Washington built a car propelled by compressed nitrogen gas. The gas was obtained by boiling liquid nitrogen stored in a 200.0 L tank
If one mole of ATP yields 7 kcal of energy, how much energy would be available from the anaerobic catabolism of 270 g of glucose (C6H12O6)? Show your work.
State the chemical equations for the synthesis of 2-pentanol from an alkenes. Utilize structural formulas for each organic compound
the original volume is 70. cm3. if the combustion of this mixture releases 855 j of energy to what volume will the
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