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A 40.0% mass percent solution of ethylene glycol (C2H6O2) in water has a density=1.0514g/mL. Find the molality (m).
The freezing points of 0.0935 m ammonium chloride and 0.0378 m ammonium sulfate in water were found to be -0.322 C and 0.173 C. What are the values of the van't Hoff factors for these salts
The empirical formula for acetic acid is CH2O. Its molar mass is 60 g/mol. what the molecular formula is?
A 1.0 L buffer solution is 0.250 M LiC2H3O2 and 0.050 M HC2H3O2 . Which of the actions will destroy the buffer? (a)adding 0.050 moles of LiC2H3O2(b)adding 0.050 moles of HCl(c)adding 0.050 moles of HC2H3O2(d)adding 0.050 moles of NaOH.
An uncharacterized compound Z is thought to have an amino group with a pKa of 10.0 and another ionizable group with a pKa between 4 and 7.
The molar solubility of lead sulfide, PbS, is a 0.213 M ammonium sulfide solution is? The Ksp for PbS = 3.2 x 10^-28.
A gas pressure of 2.0 atm is in a closed container. Indicate the changes in its volume when the pressure undergoes the following changes at constant temperature: a) the pressure increases to 6.0 atm. b) the pressure drops to 1.0 atm. c) the pressu..
What are the simple sugars of lactose, maltose and sucrose and why are some people lactose intolerant
What volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the disodium salicylate and the excess of NaOH present after the initial reaction
Use Table 6.3 or Appendix B to write balanced formation equations at standard conditions for each of the following compounds. (Type your answer using the format O3 for O3. Write all coefficients, even if they are fractions or 1.)
a certain balloon will pop if it expands to a volume greater than 16.0l. the balloon is currently filled with air at a
A Friede-Craft reaction. The reactants are tert butyl chloride and FeCl3. what would the arrow pushing mechanism and the product look like
The heat capacity of the calorimeter is 2.21 kJ/Degrees Celsius. Using this information, determine the heat of combustion per mole of pentane. Could someone please explain clearly step by step on how to solve this problem.
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