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If a 1.00 cm^3 solid cube of alumina ceramic initially at 300 C is placed in 50 ml of H2O initially at 25C in a closed, insulated container: (a) what will be the final temperature of the system when thermal equilibrium is attained. (Use relevant values in Appendix B of the Callister text and assume that the values of density, heat capacity, etc. are constant with temperature). (b) By what amount would the density of the alumina actually change due upon cooling?
If acetaminophen happened to be the unknown component how would one separate it from sucrose and aspirin? Generate a separation flow chart based on the experimental procedure above
Define pH. why do chemists normally choose to discuss the acidity of a solution in terms of pH rather than hydrogen ion concentration [H+]
if .43g of aluminum foil was dissolved in sufficient 3M KOH solution, and the solution was acidified with 4M H2SO4, what was the theoretical yield of KAl(SO4)2 * 12H2O
An optically activated alkyne A(C10H14)can be catalytically hydrogenated to butylcyclohexane. Treatment of A with C2H5MgBr liberates no gas.
an auto mechanic spills 85 mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.5 M NaHCO3 must be poured on te spill to react completely with the sulfuric acid.
Construct a three-step synthesis of 3-bromocyclopentene from cyclopentane. Drag the appropriate items into the bins. Note that each bin should hold only one item, and not all reagents and structures will be used.
nitrobenzenesulfonic acid starting from benzene and using any needed organic/inorganic reagents.
A 41 kg person drinks 280. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work,
A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of a 2.18 g sample burns in excess oxygen yields 3.94 g of CO2 and 1.89 g of H2O. A separate experiment shows that a 1.23 g sample contains 0.235 g of N.
200 mL of 1.00M NaOH is reacted with 200 mL of 1.00 M HCl in a calorimeter. The calorimeter and the solutions were at an initial temperature of 19.5oC before mixing.
an a group metal m reacts with chlorine and oxygen to form ionic compounds with the formulas mcl4 and mo2. propose a
Consider the titration of 100.0 mL of 0.100 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added and make a graph of pH versus Va: Va = 0, 1,5,9, 9.9, 10. 10.1. and 12 mL.
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