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Define A mixture of benzoic acid, benzyl alcohol, and biphenyl is spotted on a silica gel TLC plate and developed in a dichloromethane-cyclohexane solvent mixture. Forecast the relative Rf values for the three components in the sample.
If 45.4g of H2O are produced in the reaction given below, the number of grams of magnesium carbonate used is.?
How many grams of K2SO4 are there in 243 grams of an aqueous solution that is 28.7 % by weight K2SO4.
Using formal charges, draw the resonance form from among all the Lewis structures that is most important in describing BeCl2.
Calculate the rms (average) speed of ClO2 atoms or molecules at 297 oC. Use R = 8.314 kg-m2/K-s2-mol for the value of the gas constant.
this gas is compressed to a volume of 286 mL and the pressure increases to 901 torr, what will be the new temperature of the gas (reported to three significant figures in °C)
A water carbonating plant operates by providing carbon dioxide at 5.0 atm. Estimate the molar concentration of CO2 in carbonated water it produces at 25 ºC.
Determine the volume of 02 (at STP) formed when 50.0g of KClO3 cedomposes according to the following reaction. The molar mass for KClO3 is 122.55g/mol. 2KClO3(s)-->2KCl(s)+3O2(g)
What is the quantity of Fe2O3 that will be produced if 5.00g of FeS2 is reacted with 11.0g of oxygen according to the following reaction
The entropy increase after mixing 2 moles of oxygen 1 mole of nitrogen, which were prepared at the same pressure and temperature, is (in J/K). (Pretend oxygen and nitrogen are ideal gases)
Calculate the weight percent composition of the mixture (hexane, heptanes, hexanol, and toluene). b. Calculate the mole percent composition of the mixture.
Suppose that in an alternate universe, the possible values of ml were the integer values including 0 ranging from -l -1 to l + 1 (instead of simply -l to + l). How many orbitals would exist in each sublevel
One liter of a buffer solution is made by mixing exactly 500 mL of 1.000 M Acetic Acid and 500 mL of 0.500 M Calcium Acetate solutions.
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