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Sulfur has at least two polyatomic elemental forms, S6 and S8. A sample of sulfur weighing 0.210g was dissolved in 17.8g carbon disulfide. (Kb= 2.340C/m ) If the boiling point elevation was 0.1070C, what is the formula of a sulfur molecule in this environment
Show the condensation of two glucose molecules to form a disaccharide with an alpha linkage; with a beta linkage.
Upon resonding to a 2am domestic transportation mishap, your hazmat team determines that a liquefied compressed gas is leaking from a 5lb steel cylinder.
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.160 M HClO(aq) with 0.160 M KOH(aq). The ionization constant for HClO 4.0*10-8.
if you are performing both an atmospheric distillation and a vacuum distillation in the same experiment: a. The atmospheric distillation is done first.
Compare a refrigerator set at four degree celcius and a freezer set at minus twenty degree celsius, both of which are operating in the room at the temperature of eighteen degree celsius.
Given the following reaction: 4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2 How many moles of O2 will be produced if 3.12 moles of CO2 react completely?
write equations that show a plausible reaction mechanism for the light-catalyzed isomerization of methyl maleate
A student mixed 50.0 mL of 0.50 M H2SO4 (aq) at 18.5 degrees C with 100 mL of 0.50 M NaOH (aq) at the same temperature. After the reaction was completed, the temperature rose to 22.0 degrees C. What was the heat of reaction? (Assuming the densitie..
A large gas flask is found to weigh 143.567 g. it is then filled with gas to a pressure of 735 torr at 31 C and found to weigh 1067.9 g (the density of water is 31 C is 0.997 g/mL). Assuming that the ideal gas equation applies, calculate the molar..
What is the concentration of iron in the steel sample? Express your answer as grams of Fe per grams of steel (g Fe2 / g steel).
what is the theoretical mass of xenon tetraflouride that form when 118. grams of xenon is reacted with 62.0 grams of flourine?
The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 1 Liter of 0.15M NaOH solution.
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