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A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps.
An ideal gas in a sealed container has an initial volume of 2.55 L. At constant pressure, it is cooled to 20.00 °C where its final volume is 1.75 L. What was the initial temperature?
Considor a beaker of water sitting on the pan of an electronic scale, giving a reading of 110.4g. A lead weight hanging from a string is suspended in the water and the mass reading on the scale increases to 127.9g.
Question- The specific heat of water is 4.184 J/g c and that of aluminum is .89 J/g c. Will 1 gram of water or 1 gram of aluminum have the biggest increase in temperature upon the addition of 4.184 J? Explain.
An aliquot of a solution containing a pure beta particle emitter is counted in a liquid- scintillation counter, while an equal aliquot is evaporated and counted with a thin window G-M counter.
Which of the following species will always be a spectator ion in a precipitation reaction. Cl-, NO3-, Br-, NH4+, S2-, SO42-, K+ Is it K+ and NH4+, because they alkali metals and the ammonium ion are soluble in water
Explain why magnetic metals are found only among the 3d and 4f elements. Why are Sc and Ti, which are also 3d elements, diamagnetic?
thermogravimetry tg and differential scanning calorimetry dsc are commonly used techniques to study the properties of
A solution is made by dissolving 45 g toluene (C7H8) in 125 mL of liquid benzene (C6H6; d=0.874 g/mL). What is the molality of toluene in the resulting solution.
The following initial rate data was collected at constant temperature. Find out the correct rate law for the reaction. All units are arbitrary.
what is the half-life of a compound if 89 percent of a given sample of the compound decomposes in 56 min? assume
What is the average current passing through a solution of NiSO4 if 1.25 g of Ni were deposited in 4.07 hours? i = A
The equivalence point was reached by adding 11.62 ml of NaOH from the buret. What is the molar mass of this unknown acid
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