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For the formation of your photchromic imine you use ammonium bromide. Give 2 reasons why you cannot use concentrated HBr.
An empty flask weighs 252.2 grams. When filled with water ( d= 1.00 g/cm3) the flask and its contents weigh 591.8 g)
Consider the reaction: Cu^2+(aq) + 4NH3 (aq) -> Cu(NH3)4^2+(aq) Kf=2.1 x 10^13 If Ksp for Cu(OH)2 is 2.2 x 10^-20, what is the value of the equilibrium constant, K, for the reaction below? Cu(NH3)4^2+(aq) + 2OH -> Cu(OH)2(s) + 4NH3(aq)
write an assay paper review on the application of suspended particles or particles solid form liquid or gas such as in
In an acid-base titration experiment, 50.00 mL of a 0.0500 M solution of acetic acid (ka=1.75 x 10^-5) was titrated with a 0.0500 M solution of NaOH at 25 degree C
Its titrated with NaOH. Being a triprotic and having 3 acid dissociation constants Ka1, Ka2, Ka3 one would expect to see three equivalence points. Why does it only show two equivalence points
a sealed balloon is filled with 0.50 l of helium at 23degc and 1.00 atm. the balloon rises to a point in the atmosphere
Consider the titration of 51.5 mL of 1.2M NaOH with 1.0 M HCl. Find the PH at the following points. The acid volume needed to reach the equivalence point
Given Mo Energy level diagram for diatomic molecules, which of the following molecular molecular ions has a bond order of 3. Why
A student is given a soluble sodium salt containing one of eight possible anions (negative ions): acetate, chloride, bromide, iodide, sulfide, sulfate, or phosphate. the student adds some BaCl2 solution to the salt solution.
What is the change in entropy for the system, surroundings, AND total for the following processes
How many grams of KCOOH are needed to prepare 150 ml a buffered solution of pH 3.85 if the acid concentration, HCOOH is 0.1M
The most prominent line in the spectrum of Neon is found at 865.438 nm. Other lines are found at 837.761 nm, 878.062 nm, 873.375 nm, and 1885.387 nm.
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