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Question- Suppose that 25.0 mL of a 0.440 M NaF solution is added to 25.0 mL of a 0.320 M Ba(NO3)2 solution. The total ionic equation is: 2NaF(aq) + Ba(NO3)2(aq) ==> BaF2(s) + 2NaNO3(aq). What mass of BaF2 would precipitate.
Explain the each step. Explain the process and each step.
Attempting to recrystallize a compound but it won't dissolve in boiking hexanes and while it readily dissolves in boiling ethyl acetate, no crystals are formed upon cooling. What is the problem and what would be your next choice of a single solven..
at 700° C is 0.76 atm. Determine the initial pressure of carbon tetrachloride that will produce a total equilibrium pressure of 1.2 atm at 700° C.
Oxalic acid, H2C2O4 has acid dissociation constants Ka1=5.9x10^-2 and Ka2=6.4x10^-5. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2C2O4
Draw line-bond structures for C3H6O, include all the constitutional isomers (except those with carbon-carbon double or triple bonds.) for each constitutional isomers
calculate the volume of reagent required for the reaction, assuming the starting mass of copper used is 1.00g.
if 0.55 g of a gas dissolves in 1.0 l of water at 20.0 kPa of pressure, how much will dissolve at 110.0 kPa of pressure?
Explain the role of a spin vane or boiling stones that are added to a liquid that is to be heated or distilled
Use the graph of solubility of O2 in water versus temperature to calculate the value of Henrys law constant Kh for O2 at 8 and 33 degrees Celcius.
You are asked to prepare a buffer with a pH of 4.04. calculate the volumes of 1.00M solutions of formic acid (HCOOH) and sodium formate (NaHCOO) needed to produce 200mL of the buffer
A Volume of 211 mL of H is collected over water, the water level in the collecting vessel is the same as the outside level. Atm Pressure is 756 Torr and the temp is 25 degree C. Calculate atomic mass of the metal.
When a solution of A is mixed with one containing B- ions, the color changes from green to red. Which species is oxidized?
Depict the scheme of glycolysis. Presume that glucose is labeled by C14 at its C-3 atom. Explain at what position of pyruvate molecule does the label take place after glycolysis?
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