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Is density of an organic molecule directly related to the molecular weight of a substance? (That is, does density always increase when molecular weight increases?) Use the examples above to explain.
An aqueous solution contains 3.00% phenylalanine (C9H11NO2) by mass. Assume the phenylalanine is non-ionic and nonvolatile. Find the following
How much of an epoxy that has a "weight per epoxy" of 435 in 80% solid solution is needed for the same reaction?
What must the minimum temperature of its energy source be if it is to produce work with an efficiency of 0.75?
How many grams of aspirin were lost in the washing process you used to purify your product, assuming you used 50mL of water for washing? The solubility of aspirin in water is 0.33g per 100mL at room temperature.
Determine the magnesium content (in ppm) of a 100.00 mL sample of drinking water if the following data were obtained. Titrant is 0.0297 M EDTA, 13.71 mL
How many grams of Ag2S can be generated from a mixture of 1.85 g Na2S and 3.58 g of AgNO3 given the following unbalanced reaction:
Which of these substances would have the strongest cohesive forces in combination with the greatest molecular mobility?
what do the bond angles of water suggest about the hybridization state of the oxygen atom of water?
Using a Sample of 0.3991 grams of an unknown monoprotic acid, HA, which combines with Sodium hydroxide according to the balanced equation HA + NaOH ® NaA + H2O when 35.30 mL of 0.1086 M Sodium hydroxide is required to titrate the acid to the equiv..
A 250.0ml sample of air at 100.0 K is warmed to 200.0 K at constant pressure.What is the volume of the air sample at the new temperature.
completely, showing all bonds, electrons, and charges in reactants and products. Draw a reaction arrow between the reactants and products and plus signs between each reactant and each product.
Determine the new volume of a 1.3 L balloon if it is taken from room temperature that is twenty five degree celsius and placed into a freezer at the temperature of -11.5 degree celsius.?
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