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The concentration of ethanol in hard liquor is given as degrees proof, which is twice the percent ethanol by volume. What are the mole fraction and molality of C2H5OH in 70 degrees rum?
(Water is 1.00 g/mL, C2H5OH is 0.79 g/mL and 46.07 g/mol)
Question- When 1.555g of liquid hexane (C6H14) undergoes combustion in a bomb calorimeter, the temperature rises from 25.65? C to 38.8? C. Find ?Erxn for the reaction in kJ/mol hexane. The heat capacity of the bomb calorimeter, determined in a sep..
Beta-Dicarbonyl Compounds, There are two reason why the enols of beta-dicarbonyl compounds, such as pentane-2,4-dione are relatively stable.
Calculate the heat released when 1.95 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.
a brand of household bleach is 5.0 sodium hypochlorite naocl by mass and has a density of 1.08 gml. in washing
A 6.50 gram sample of an ore containing chromium is dissovled and then treated with an excess of Na3PO4 (aq), which precipitates out all of the chromium in the ore as chromium (III) phospate, CrPO4.
On an average is an electron farther away from the nucleus when it is occupying a 2p orbital in hydrogen than when it is occupying a 2s orbital? Justify by computing the average distances
Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
What volumes of CO2 and NH3 at 201 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?
A circuit has two bulbs connected in series, bulb A has a p.d. of 1.2V, bulb B has a p.d. of 1.7V. A 22ohm resistor is connected in parallel around bulb A. The battery has a p.d. of 2.9V. What is the current in the battery?
Problem- If you wanted to measure the concentration of a particular species in a sample, describe the procedure you would use to do so.
the vapor pressure of a solution containing 53.6 g glycerin c3h8o3 in 133.7 g ethanol c2h5oh is 113 torr at
how many liters of carbon dioxide are produced from the complete combustion of 88 grams of propane at STP
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