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Draw a separation scheme for isopentyl acetate from its reactants (isopentyl alcohol, glacial acetic acid, and concentrated sulfuric acid)? Include when to reflux, extract, and distill.
What Amount of enrgy has been transferred to heat the water? (The specific heat capacity of water is 4.184 J/g *C )
At standard temperature, a gas has a volume of 241 mL. The temperature is then increased to 138C, and the pressure is held constant. What is the new volume?
the temperature decreases by 0.2010 K. Calculate the molar heat of solution of KCN.
What is the vapor pressure of a solution that contains .944 moles Ba(NO3)2 and 30 moles of H2O? The vapor pressure of pure water at the same temperature as the solution is 46 torr
what wind flow rate entering the canyon would produce a pollutant concentration greater than 0.0025 gmol/ft^3 in the air coming out of the canyon?
The density of germanium is 5.325 g/cm3. If you made a 5.3-nm diameter quantum dot of germanium, how many Ge atoms would it contain? Assume the dot is spherical.
A solution prepared by mixing 100 mL of 0.2 M glycine and 100 mL of 0.2 M Cu2+ is adjusted to a pH of 7 with NaOH. Calculate [Cu2+], [CuA+], [CuA2], [HA], and [A-] in the solution.
Sulfuric acid is a component of acid rain formed when gaseous sulfur dioxide pollutant reacts with gaseous oxygen and liquid water to form aqueous sulfuric acid.
A peice of gold (10.0-g, C of Au = 0.129 J/g-K) is heated to 100.0 degrees Celcius. A peice of copper (also 10.0-g C of Cu = 0.385 J/g-K) is chilled in an ice bath to 0 degrees Celcius.
The answer to formula and calculation, survey of physical chemistry, State all of the assumptions (e.g. ideal gas etc). (previous reaction is 2H??2(g) + O2(g) ----> 2H2O(g))
A steel cylinder is filled with 5.75 mol of nitrogen at 22degrees Celcius. The volume of the cyclinder is 18.4 L Calculate pressure inside the cylinder.
Calculate the change in enthalpy for the Mg-HCl reaction using standard enthalpies of formation. Delta Hf for HCl(aq)=-167.2kJ
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