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Convert a linear hexose ketose (given) to a furan, by adding a bond to form a ring and by making any necessary adjustments at one or more oxygens.
the brown gas no2 and the colorless gas n2o4 exist in equilibrium 2no2 lt----gt n2o4. in an experiment 0.625 mole of
The activity of an enzyme is close to zero at pH = 10 and above and high at pH = 6 and below. The activity of this protein probably depends upon the presence of an amino acid with R-group
write the formula and structure of potassium hydrogen phthalate used to standardize the solution of NaOH. calculate the molar mass of KHP
solution of 116 mL of .180 m of KOH is mixed with 290 mL of .190 m NiSO4. What are the concentrations of Ni, SO4 and K that remain
Find out the molar mass of each of the given gases 1) 2.16 grams of a gas that occupies 1.38L at 665 mmHg
what would be the effect on the results of mistakenly adding 2.43 times 10^-3 g Mg to 4.0 mL of 0.1M hcl rather than to 4.0 mL of 1.0M hcl as instructed
If the sign for delta G is negative (spontaneous process) and the sign for delta S is positive (more disorder) for both dissolving processes, how could one be endothermic (positive delta H) and one be exothermic
the rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 305K and 315 K. What must the activation energy be for the rate constant to double as described?
Pure water is at equilibrium with excess CaCO3 (s) and MgCO3 (s). If the water has a pH of 8.61 and is open to the atmosphere (CO2 = 390 ppmv), calculate [Ca2+] and [Mg2+]. (for MgCO3 (s), pKs = 7.45)
The electrode acts as the anode, and the electrode acts as the cathode. To maintain electric neutrality, you add a salt bridge separating the two half-cells. What is the net cell reaction for the chromium-silver voltaic cell?
Is it theoretically possicle to separate 99.99% of 0.10M KI from 0.10M KBr by controlled-potential electrolysis
The concentration of carbon in a carbon-metal alloy is found to be 4.73x10^1 kg/m3. It is also known that the concentration of carbon in wt% in the alloy is 1.318x10^0 .
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