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A balloon filled with an ideal gas at a temperature of 27 °C at 1 atm of pressure. If the balloon is heated to 127 °C at constant pressure, by what factor does the volume change?
The lethal doses (expressed in ppm by volume) of two gases A & B are the same and equal to 20 ppm. Indicate how many mg of each gas would be needed to reach the lethal concentration in a room of 46m^3.
A 6.0 g sample of [Ni(H2O)6]Cl2 is dissolved in aqueous solution. If an excess of ethylenediamine is added to the solution, solid [Ni(en)3]Cl2*2H2O forms. What is the theoretical yield of product from the reaction
a patient eats fava beans for the first time and suffers from hemolytic anemia. compared to a normal person, her cells contain
When an atom of an element is formed from its constituent components (electrons, neutrons, protons) it weighs less than the sum of free electrons, neutrons, and protons that make it up. Thi..
Explicate why the gem-dimethyl groups emerge as separate peaks in the proton NMR spectrum of isoborneolwhile they are an unresolved singlet in borneol.
Draw all of the products of the second propagation step in the free-radical bromination of 2,3-dimethylbutane including inorganic
What is the solubility, in milligrams/ mL of BaF2 (Ksp=1.8 x 10^-7) in a solution containing 5.0 mg/mL of KF
When strontium bromide (SrBr2) is heated in a stream of chlorine gas, it is completely converted to strontium chloride
A flask contains 0.180 of liquid bromine,. Determine the number of bromine molecules present in the flask.
Magnesite MgCO3 and siderite FeCO3 are the Mg and Fe end-members of the magnesite-siderite solid solution.
consider the cuau crystal structure. it can be described as a simple cubic lattice with a basis of cu 0 0 0 cu 12 12 0
A gaseous mixture of O2 and Kr has a density of 1.184 g/L at 385 torr and 300. K. What is the mole percent O2 in the mixture?
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