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Calculate the percent yield for a student who completed experiment 27A and collected the following data. Give your answer to two decimal places.
62 mL of water was mixed with 3.887 g of sugar and 4.805 g of yeast. To this mixture, 1.534 g of ethyl acetoacetate was added along with 4 mL of hexane. After a week, the product of (S)-3-hydroxybutanoate was isolated and has a mass of 1.201 g.
Calculate the mass of KI in grams required to prepare 4.00 102 mL of a 2.80 M solution.
Provide the newman projections across the C 2 -C 3 bonds for the major conformers after Drawing the zig-zag structures of all the isomers of 2,3-diaminopentane.
A 41 kg person drinks 250. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
In a particular experiment, 2.25 g of NH3 and 3.75 g of O2 are placed in a container and allowed to react. How many grams of NO will have been formed when all of the limiting reactant has been consumed?
What is the predicted pH of the following: 0.1M HCl, 0.01M HCl, 0.001M HCl, 0.1M HC2H202, 0.1 M HC2H3O2, 0.1 M NH4Cl, deonized water
What would be the volume of the balloon if it were submerged in a swimming pool to a depth where the pressure is 922.3 mmHg and the temperature is 27.35 C?
what is the formula for calcium oxalate dihydrate when 100 degree Celsius heat is added?
What is the percent hydrogen (H) by weight of a solution containing 53.5mL of CH3COCH3? The density of acetone is 0.788 g/mL
why must the Meltemp apparatus cool dwon to around 40 C between measurments? 5)why you expect ionic solids to have higher melting point than molecular solids?
What combination of properties is responsible for the selection of trinitrotoluene as a military explosive?
What volume of 0.100 M NaOH is needed to react with 11.00 g of potassium hydrogen phthalate, a monoprotic acid with a molecular weight of 132 g/mol?
A 100g sample of water at 27oC is poured into a 76.2g sample of water at 89oC. What will be the final temperature.
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