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From data below, calculate the total heat (in J) associated with the conversion of 0.499 mol ethanol gas (C2H6O) at 301°C and 1 atm to liquid ethanol at 25.0°C and 1 atm.(Pay attention to the sign of the heat.) Answer should be in J.
Boiling point at 1 atm 78.5°Ccgas 1.43 J/g°Ccliquid 2.45 J/g°CH°vap 40.5 kJ/mol
Solid silicon and solid magnesium chloride form when silicon trichloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation.
The dried precipitate weighs 10.3g. Calculate the amunt of MgCl2 in the original sample (in weight percent).
A compound with molecular formula C5H11N has no ? bonds. Every carbon atom is connected to exactly two hydrogen atoms.
how does nitrobenzoic acid form as a by-product during the nitration of methyl benzoate and how is it removed?
How many protons are required to heat 200mL of coffee from 22 degrees Celsius and 64 degrees Celsius
it took 35.40mL of 0.100 M NaOH to titrate a 2.55 gram of a weak acid to the equivalence point. The pH when 17.7mL of the NaOH had been added was 6.2. What was the Ka for the acid
Determine pH of the solution....ICE table..Henderson HasselBach equations, Using a ICE table (initial change equilibrium) a)Calculate the pH of solution that is 0.175M in acidic acid(HC2H3O2) ans 0.110Min potassium Acetate(KC2H302)
If a 10B nucleus absorbs a proton, the radioactive nuclide that is produced may undergo alpha decay. What nuclide is produced in the decay process?
A molecule of glucose contains 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms. Which is the correct formula.(a) 6CH20 (b) (CH2O)6 (c) C6H12O6 (d) C6(H2O)6
For each of the following acid-base reactions, calculate the mass (in grams) of each acid necessary to completely react with and neutralize 5.15 of the base.
At high temperatures phosgene (COCl2) decomposes to give carbon monoxide CO and Cl2. In a typical experiment, 0.631 g of COCl2 is injected into a flask of volume 472 cc. When equilibrium is established, it is found that the total pressure is 2.175..
When photons with a wavelength of 310. nm strike a magnesium plate, the maximum velocity of the ejected electrons is 3.45 × 105 m/s.
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