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Homework: Synthesis of Aspirin Lab
Pre-Lab Homework:
The pre-lab homework should be completed in the laboratory notebook.
Experimental Purpose
1. Summarize the purpose of the experiment.2. Look up the melting point of methyl benzoate and benzoic acid.
Pre-Lab Questions
Question 1. Write the equations leading to formation of benzoic acid from methyl benzoate.
Question 2. A student hydrolyzed 2.00 g of methyl benzoate with excess sodium hydroxide. Calculate the theoretical yield of benzoic acid. If this student obtained0.80 gof benzoic acid from the reaction, what was the percent yield of the reaction?
hydrogen has a henerys law constant of 1.07x10^-6 M/mmHg at 25 degrees celsius when dissolving in water. if total pressu of gas (H2 plus water vapor) over water is 1 atm. what is the concentration of gas phase hydrogen
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The density of an unknown metal is 2.64 and its atomic radius is 0.215 . It has a face-centered cubic lattice.Find the atomic weight of this metal.
If 76.0 mL of .150 M HCL is needed to neutralize all the NH3 from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
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what is the composition of the vapor of a pentane-hexane solution that has a vapor pressure of 357 torr at 25c vapor
Question- Determine if the following solutions when mixed are acidic or basic - a) A 225 mL of a 0.5 M hydrofluoric acid solution was mixed with 150 mL of a 0.25 M calcium hydroxide solution. b) 13.4 grams of NH3 gas was bubbled into 634 mL of a 0..
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