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The melting point of a pure compound is 152-153 C. Describe the melting behavior for this compound if it is contaminated with 5% of an impurity.
Ethanethiol (C2H6S) is a compound with a disagreeable odor that can be used to impart an odor to natural gas. When ethanethiol is burned, the sulfur reacts with oxygen to form SO2
Hydrogen gas has a Henry's law constant of 7.8 x 10 -4 mol/kgxbar at 25 C when dissolving in water. If the total pressure of gas (H2 plus water vapor) is 1.00 bar over water, what is the concentration of H2 in the water in g/mL
a gas mixture with a total pressure of 770 mmHg contains each of the following gases at the indicated partial pressures: CO2, 122 mmHg; Ar, 209 mmHg; and O2, 191 mmHg. The mixture also contains helium gas. what is the partial pressure of the heliu..
With respect to the corrosion of steel in concrete, explain the significance of the following terms: carbonation of concrete, passivity of steel, electrical resistivity of concrete, state of oxidation of iron.
the consentration of the reactant to drop to 25% of its inital value. what is the rate constant for reaction?
Calculate the molar solubility of barium fluoride in water at 25 degrees celsius. The sp constant for BaF2 at this temperature is 1.0x10^-6.
A concentration cell contains electrodes made of the same metal and solutions containing the same ions but a different concentrations. Consider Zn electrode in 0.1 M ZnSO4 solution in one compartment and Zn electrode in 1.0 M ZnSO4 for another com..
Briefly discuss the importance of the principles of solubility and miscibility when choosing extraction solvents
Calcule the platinum electrode potential (vs. NHE), immersed in solution containing 0.50 M Br2 KBrO3 0.20 M at pH = 2.5
If the absolute temperature of a gas is doubled, what happens to the root-mean-square speed of the molecules?
calculate the molar quantity of N2 that must be generated.What molar quantity of sodium azide is required to generate this much nitrogen?
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 20 A. Express your answer using two significant figures.
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