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A solution is 40.0% by volume benzene (C6H6) in carbon tetrachloride at 20C. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm3. If this solution is ideal, its total vapor pressure at 20C is
A 4.70 g nugget of pure gold absorbed 285 J of heat. The initial temperature was 24.0°C. What was the final temperature.
Methanol (CH3OH) is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen: CO(g) + 2H2 (g) (equilibrium) CH3OH(g).
Then 40.0 mL of this solution were titrated with 0.060 M HClO4. Calculate the pH at the first equivalence point.
Calculate the initial pH, pH after addition of 20 mL HCl, pH after addition of 50 mL HCl, pH at the equivalence point, and pH after addition of 120 mL HCl.
what is the volume of HCl gas required to react with excess magnesium metal to produce 6.82 L of Hydrogen gas at 2.19 atm and 308 K?
if a plant produces 5.06 mol of C6H12O6, how many moles of CO2 are needed?
A car gets 9.2 kilometers to a liter of gasoline. Assuming that gasoline is 100% octane which has a specific gravity of .69, how many liters of air (21% oxygen by volume at STP) will be requiered to burn the gasoline for a 1250 km trip? assume com..
Calculate the molar concentration of Tl+ and Cl- in this saturated solution. Calculate Ksp value for TlCl at this temperature
determine the empirical and molecular formulas of a hydrocarbon which has a molecular weight of 84 mass unit which contains 85.7% carbon.
A 25.0 mL sample of a 0.115 M solution of acetic acid is titrated with a 0.144 M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.
Based on the 4 attached spectra, propose a structure for the unknown organic compound. Please explain each spectrum (IR, H NMR, C NMR, & Mass Spec)
If an archaeologist finds an ancient firepit containing partially consumed firewood, and the 14C content of the wood is only 13.1% that of an equal carbon sample from a present-day tree, what is the age of the ancient site?
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