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For the fractional distillation, a mixture hexane (b.p.=69) and toluene (b.p.=110.6) is used. a. Sketch a temperature versus volume diagram. Would it be a negative slope because the more volume of a substance you gave the higher bp? b. Sketch a temperature versus time diagram. Not sure on this
At 25 c the ion product of water, Kw is 1.9 x 10^-14. What is the concentration of hydroxide ions in a solution where the concentration of hydrogen is found to be 5.0 x 10^-15 mol dm^-3.
An unknown metal M reacts with sulfur to form a compound with the formula MS. If 4.37 g of M reacts with 2.51 g of S, what are the names of M and MS?
A reaction mechanism involving three steps is shown below. Identify all of the catalysts in the following mechanism.
A gas cylinder that contains argon has an internal volume of 6.88 L. A pressure gauge attached to the cylinder reads 1810 psi
Determine the average atomic mass of helium, which has two isotopes having atomic masses 4.0026 amu and 3.0160 amu.The relative abundance of the two isotopes is 99.9999 percent and 0.0001 percent, respectively.
What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 . 5SO3?
a bottle of wine contains 14.5 ethanol by volume. the density of ethanol c2h5oh is 0.789 gcm3. calculate the
consider a hydrogen atom in its ground state. what is the energy of its electron? consider the hydrogen atom in an
Calculate the mass/volume percent [% (m/v)] of 0.278 g of potassium chloride in a 987.8 mL solution.
Why is sodium bicarbonate used instread of sodium hydroxide for the initial extraction
The reaction 2NO2(g)-----2NO(g)+O2(g) was studied at 383dgree c and the following data was obtained?
A laboratory procedure calls for making 570.0mL of a 1.6M KNO3 solution. How much KNO3 in grams is needed
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