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At the end of a reaction, I ended up with a 200 mL aqueous solution containing 20g of benzaldehyde. The solubility of benzaldehyde in dichloromethane is 5 g per 100mL. What mass of benzaldehyde can be recovered by extraction with 3x 50 mL portions of dichloromethane?
An iron (II) complex of the formula FeL5 2+ might have either square pyramidal or trigonal bipyramidal geometry. Would it be possible to differentiate between these geometries on the basis of a magnetic susceptibility? How would the number of unpa..
Why are fluorescence measurements made at 90 degrees from the incident beam in most cases? 3. What is the ideal cuvette placement to avoid pre- and post-filter effects?
What is the limiting reactant when equal masses of iron(III) chloride and potassium phosphate react in solution?
portion of that solution is diluted by adding 165 mL of water. What is the final concentration? Assume the volumes are additive.
Suppose that a sample of gas occupies 162 mL of volume at 25C and a pressure of 291 torr. What would be the volume if the pressure were changed to 503 torr at 25C? Answer in units of mL.
why was Mendeleev's decision to leave blank spaces on his table sometimes was referred to as his most significant contribution to the periodic table?
190 mL of an HCl solution with pH of 3.60 is added to 200 mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution?
The nitration of toluene gives o- and p-nitrotoluene as the major products. Please explain this observation, using structures (rather than words) as much as possible.
Determine the new volume of the mixture if the constant is kept constant at 635 mmHg and all the energy released is converted to work to push the piston.
What is the molarity of a HCl solution if the reaction of 223 mL HCl with excess CaCO3 produces 10.7 L CO2 gas at 714 mmHg and 36°C?
Using the information below, what is the most stable form of sulfur at 298K and 1atm? (no calculations needed) S(rhomic): V=0.016, delta H formation=0, delta G formation=0, Standard molar S=31.8, standard molar Cp=22.64 S(monoclinic)
When 200ml of 0.11M hydrochloric acid (HCl) is mixed with 800ml of 0.10M methylamine (CH3NH2), write the net ionic reaction that favors products and occurs as the solutions are mixed. Then write the equilibrium reaction that you would use to solve..
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