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A chemist wants to resolve a particular amine, but she has only meso-tartaric acid on hand.She scans the lab inventory and finds several acids, but they are listed only by their common names, which she does not know or remember. Which of the following acids could she in principle use for the resolution of an amine: magic, maleic, malonic, malic, mandelic, meconic, muconic or myristic acids?
Is strategic behavior important in this market pharmaceutical drugs. Avoid answering any of the questions with a quote.
A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. What is the alkalinity of this water (in meq/L)? Does the answer make sense, why or why not
What is the balanced chemical equation for the reaction used to calculate Delta H f of SrCO3(s) ? If fractional coefficients are required, enter them as a fraction
Write the equation of the cell reaction and indicate cathode and anode half-cells for the electrochemical cell formed from a Mg/Mg^2+ half-cell and In/In^3+ half-cell.
a solution is 0.0010 m in each of the following cations ag hg2 and pb 2. the ksp values for agcl hg2cl2 and pbcl are
Producing hydrogen atoms from H2 molecules requires 436 kJ/mol to break H-?H bonds. For the longest-?wavelength photon capable of breaking a single H-?H bond, calculate
A compound has a pKa of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 is added 30 mL of 1.0 M hydrochloric acid. What is the pH of the resulting solution
a balloon filled with helium gas has a volume of 500ml at a pressure of 1 atm. the balloon is released and reaches an
a sample of 4.00 g of a substance with a molar mass of 80.0 gmol is combusted and the heat released is used to heat
Draw constitutional isomers of C5H8 that are terminal and internal. Name each molecule according to IUPAC.
added 5 mL of 0.10 M H2SO4 instead of 5mL 0.10 M of HCl calculate the ph of the solution using henderson-hasselbalch
Calculate the concentrations of all species present, the pH, and the pecent dissociation of HCN
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