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Consider a solution that contains 74.0% R isomer and 26.0% S isomer. If the observed specific rotation of the mixture is -33.0, what is the specific rotation of the pure R isomer?
Calculate the pH of a solution that is 0.50 M in HF (Ka= 7.2 x 10-4) and 0.60 M in NaF. The answer is 3.22. Please show me how to get the correct answer.
Caulculate the change in pH when 0.95 g of CH3COONa is added to 48 mL of 0.50 M acetic acid, CH3COOH. Ignore any changes in volume. The Ka for CH3COOH is 1.8 * 10^-5
when 96.4 g of god at some temperature is added to 25.0 g of water at 23.4 c in a calorimeter the final temperature of
1. calculate how many n atoms are there in the empirical formula for this given compound when the reported analysis
Calculate the pH at the equivalence point for the titration of 0.130 M methylamine (CH3NH2) with 0.130 M HCl. The Kb of methylamine is 5.0× 10-4.
What is the volume of added base at the equivalence point for KOH in mL. b) What is the volume of added base at the equivalence point for CH3NH2 in mL
What is the length of a cubic lose-packed unit cell of an element, in picometers, if the atomic radius is 187.0pm
how much heat in kilojoules is evolved or absorbed in each of the following reactions?a burning of 15.5g of
If 30.0mL of 0.500M KOH are needed to neutralize 10.0mL of HCl of unknown concentration, what's the molarity of HCl?
determine the density in gml of a 0.70 g sample of oxygen gas that occupies 5.0l. compare the density of oxygen gas to
Draw the structure of the following three isomeric amides with chemical formula C6H11NO. Draw all three structures in the same window, DO NOT separate them with an arrow
The proteins in the mixture are separated by chromatography. You have reason to believe that your unknown protein is an enzyme which catalyzes the cleavage of phosphodiester bonds.
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