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in a lab I did a section on "equilibria in saturated solutions". in a test tube we mixed 1M of K2CrO4 with 0.1 M BaCl2, the resulting mixture gave us a creamy yellow coloured solution with a precipitate suspended in the solution. Then we added 6 M of HCl drop wise to the solution. I don't think we added enough HCl because nothing really happemed, if we were to add more HCl what would have happened? some people said that the precipitate disappeared and the solution went back to a bright orange/yellow clear colour, what is the chemical equation that describes both these reactions, and how does La Chatelier's principle relate to this?
Which of the following correctly lists the following isomeric alkanes in order of increasing boiling point? n-hexane, 2,3-dimethylbutane, 2-methylpentane
Rate Constant with Temperature Changes, Rearrangement of methyl isonitrile to acetonitrile has activation energy of 25.0 kJ/mol and a rate constant of 8.1*10^-4s-1 @ 80 Celsius.
What tripeptide would be synthesized from the informational strand of DNA with the sequence 5' GTATCCAGT?
If the initial concentration of N2O4 is 0.50 M, and no NO2 is initially present, what is the equilibrium concentration of N2O4? Kc = 0.0059 at 298 K N2O4 (g) 2NO2 (g)
If the methane contained in 4.00 L of a saturated solution at 25 C was extracted and placed under STP conditions, what volume would it occupy?
Organic Chemistry-In the mass spectrum of butylbenzene, the base peak occurs at m/z
4 HCl(aq) + MnO2(s)-> MnCl2(aq) + 2 H2O(g) + Cl2(g) Consider the reaction of 1.53 mol HCl with excess MnO2. How many moles of Cl2 form?
process it is given that Rubidium has a heat of vaporization =69.0 kJ/mol at its boiling pt= (686°C). Compute ΔS for this process?
Which of the following statements is true regarding chiral carbons with R configuration? a. plane polarized light is rotated clockwise b. plane polarized light is rotated counterclockwise
A compound of forumula C14H12 gave a positive Baeyer test and burned with a yellow, sooty flame. Treatment with ozone followed by hydrolysis in the presence of zinc gave formaldehyde as one of the products.
Compute the concentrations of all species in a 0.900 M sodium sulfite solution. If it is given that the ionization constants for H2SO3 are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
Gold has a density of 19.3g/ml .suppose you have 100.0 glonkins of gold., what volume in liters will the gold occupy.
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