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Question:
Draw a structural formula for the product of the reaction shown.
Use the wedge/hash bond tools to indicate stereochemistry.
Show stereochemistry in a meso compound.
In cases where there is more than one answer, just draw one.
Compute the number average molecular weight for a polypropylene for which the degree of polymerization is 15,000.
Describe the preparation of 0.250 L of 50.0 mM lactate buffer, pH 4.5 using a 0.5 M solution of lactic acid and 0.5 M solution of sodium lactate. pka=3.9
Compute the amount of 1.00x10-3 M phosphate stock solution must dilute to make 100.mL of 1.50x10 -5 M phosphate.
An unknown gas Q effuses 1.26 times as fast under the same conditions as Xe gas. What is the molar mass (g/mol) of Q?
Write the name of the major organic product obtained from the reaction between 1-phenyl-1-ethanol and concentrated sulfuric acid when heated.
solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. Write a balanced chemical equation for this reaction.
In a plot of [S]iVs/Vi versus [1.031]x+s,fVf/Vi, the slope and y-intercept were 1.031 mV/mM and 0.06 mV, respectively. Calculate the concentration of the cocaine metabolite in the sample (2 s.f.) in mM.
An unknown compound contains only carbon, hydrogen, and oxygen. Combustion of 3.50 g of this compound produced 5.13 g of carbon dioxide and 2.10 g of water.
130 mL of an HCl solution with pH of 3.90 is added to 200 mL of an HNO3 solution. The resulting solution is 1.40 mL. What was the pH of the original HNO3 solution?
Which of the possible unknowns for this experiment would give this behavior. Write a balanced equation for the reaction observed between this compound and BaCl2.
A solution contains 25 mmol of H3PO4 and 10. mmol of NaH2PO4. What volume of 2.0 M NaOH must be added to reach the second equivalence point of the titration of the H3PO4 with NaOH?
Problem- 1) Write a chemical equation for the reaction of this acid with water. Identify the Bronsted acids and bases in the reaction.
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