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When a 3.400 gram sample of an unknown alcohol is burned in oxygen, the products were carefully collected and weighed yielding 6.494 grams of CO2 and 3.985 grams of H2O. If the molecular weight of the unknown is 46.069 g/mol, what is the molecular formula for the alcohol?
Assuming levels of atmospheric CO2 are 390 ppm CO2, what is the pH of rainwater in equilibrium with the atmosphere for the pre-industrial atmospheric CO2 concentration of 280 ppm,v.
Calculate the resulting discharge temperature and the required horsepower for one stage compression of the following gas properties. Construct a plot of such discharge temperature and required horsepower versus one stage compression ratios of 2, 3..
Describe the Liquid-liquid extraction of a mixture of potassium iodide , benzoic acid and napthalene. Explain reactions and interactions that are important
What volume will the second student calculate for this bottle. Will this bottle hold the 75 cm^3 of water. However, the second student reports that the same bottle is 3.2 cm in diameter and 10.5 cm tall. To calculate the volume of the bottle, use t..
3.2 x 10-3 moles of O2 gas effuse from a container in 10.0 minutes. How many moles of CH4 gas could effuse from the same container in 10.0 minutes under the same conditions
How much NaOH in grams is needed to prepare 546 mL of solution with a pH of 10.00? The molecular weight of NaOH is 40.0 g/mol. Hint: Since NaOH is a strong base it ionizes (disassociates) completely. The OH- concentration equals the initial concen..
a voltaic cell is created with one half-cell consisting of a copper electrode immersed in 1.0 m cuso4 solution and the
xygen, contained in a 1.0-L vessel at 4.0atm, is transferred to a 5.0-L vessel containing only Argon, Ar, at 2.0atm. What is the final total pressure in the 5.0-L vessel? Assume that there is no change in temperature, give answer in atm (atmospher..
Calculate the equilibrium concentration of Zn2+(aq) in a solution that is 0.0125 M Zn(NO3)2 and 0.600
HCl by mass and has a density of 1.20g/ml .How much concentrated solution would you take to prepare 2.75L of 0.430 M HCl by mixing with water?
What volume of pure O2(g), collected at 27°C and 746 torr, would be generated by decomposition of 114 g of a 50.0% by mass hydrogen peroxide solution? Ignore any water vapor that may be present.
Assuming ideality, how many grams of Xe are needed to inflate a bag with a volume of 867 mL at a pressure of 1.29 bar
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