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A dose of aspirin of 5.0 mg per kg of body weight has been prescribed to reduce the fever of an infant weighing 12.5 pounds (1.0lb = 454 g). The number of milligrams of aspirin that should be administered is?
Assume that a particular reaction evolves 235kJ of heat and that 24 kJ of PV work is gained by the system What is the delta H inside and the surroundings and delta E inside and out?
The normal boiling point for acetone is 56.6 degrees Celsius. At an elevation of 5300 ft the atmospheric pressure is 630 torr. What would be the boiling point of acetone (enthalpy of vaporization=32.0 kj/mol) at this elevation? What would be the v..
Draw the two remaining resonance structures (in any order), including nonbonding electrons and formal charges. Which is the most stable
A concentration cell is built based on the following half reaction by using two pieces of iron as electrodes (each weighing 100.0 g), two Fe3+ solutions, 0.149 M and 0.431 M (both exactly 1.00 L in volume), and all other materials needed for a gal..
The number density of atoms (mostly hydrogen) in interstellar space is about 10 per cm3, and the temperature is about 100K. a. Calculate the pressure of the gas in interstellar space, and express it in atmospheres.
nickel is to be deposited on a platinum cathode area120cm2 from a solution that is 0.200m in ni2 and buffered to a ph
the following set of data was obtained by the method of initial rates for the reaction: 2 HgCl(aq) +C2O42-(aq)-> 2Cl-(aq) + 2 CO2(g) + Hg2Cl2(s) what is te rate law for the reaction
Calculate the heat evolved in kilojoules by the formation of the solution. Calculate the heat evoled per mole of sulfuric acid. Use n(changeH) = -(mCchangeT)
Write a balanced equation for the reaction. What volume of 0.200M MnO4- solution is needed to titrate 22.5mL of a 0.350M solution of ethanol?
Calculate the probability that a quantum mechanical particle in a one-dimensional box will be found in the left quarter of the box through repeated measurements when it is in the lowest-energy state?
Photochemical chlorination of 2,2,4-trimethylpentane gives four isomeric monochlorides. Write the structural formulas for these for isomers. 1. Isomer with a primary chloride and the methyls at the lowest numbering
Sodium methoxide reaction: Pipet 1.65 mL of a 25% (by weight) solution of sodium methoxide in methanol into a 10 mL reaction flask.
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