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Based on the given chemical equation, how many grams of aluminum are needed to react with 0.6 moles of hydrochloric acid? Al + HCl yields AlCl3 + H2
A patient needs to take 625 of ibuprofen twice daily. The pills in the bottle are each 250. . How many pills does the patient need to take each time she wants the 625 dosage? Assume that these pills are scored and can be cut in half if necessary.
Give some values of pressure and temperature at which you are sure that the substance called zinc exists in an equilibrium state as a) solid and b) vapor
A block of metal has a width of 3.2 cm, a length of 17.1 cm, and a height of 2.7 cm. Its mass is 1.5 kg. Calculate the density of the metal. Express in grams per cubic centimeter using two significant figures.
The volume of a certain gas sample is 235 mL when collected over water at a temperature of and a pressure of 698 mmHg. What will be the volume of this gas sample when measured dry at a standard pressure? The vapor pressure of water at this tempera..
When radiation of a wavelength 2.45 x 10^-7 m falls on metal surface, the maximum kinetic energy of the emitted electrons is found to be 6.73 x 10^-19. What is the value in J of the work fuction of the metal
It takes 171 minutes for the concentration of the reactant in a first-order reaction to decrease from 0.6000 M to 0.150 M at 25 C? How long will it take for the reaction to be 90.0% complete
Calculate the molarity of your unknown, assuming it is monoprotic acid or monobasic base. Show all calculations for one titration with good precision including units and correct number of significant figures.
What are the main mononitro products of the nitration of the following compounds - Write structural formulas for the compounds
If more than one alkene is possible, predict which one will be formed in the largest amount: a. 2-methyl-2-butanol b. 1-methylcyclohexanol
Draw resonance structures for 9-(hydroxymethyl)anthracene. Is it possible for all three rings to simultaneously have bensenoid
At constant temperature and volume, 3.8?10-3 mol of helium is added to a 1.0 L sample of xenon at 0.081 atm and 325 K. What is the total pressure of the gas mixture
The bed diameter is .40 m and the desired height of the bed at these minimum fluidizing conditions is 1.75m. Calculate the amount of solids needed.
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