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The formation constant Kf for the complex ion Zn(OH)42- is 2.8 1015. What is the concentration of zinc ion, Zn2+, in a solution that is initially 0.50 M in Zn(OH)42-
Explore the effects of acid rain pre and post the 1990 Clean Air Act. Pair up and choose one of the topics listed below. One person should research and report on the damage that was being observed due to acid rain prior to 1990.
The compound BeBr2 has a total of how many shared electrons and how many non-bonded electrons?
Write the simplest balanced equations, and find the actual relative masses of the elements. Explain your reasoning.
Write an equation to show how H2PO3- can act as a base with HS- acting as an acid. Then show H2PO3- can act as an acid with HS- acting as a base.
What is the pH of a sodium formate solution prepared by adding 0.680 grams of sodium formate to 100.0 mL of water at 25.0 degree C? Ka of formic acid at 25.0degree C is 1.8*10-4.
a particular gas exerts a pressure of 785 mmHg. what is this pressure in units of Atmospheres
If 5.400 g of C6H6 is burned and the heat produced from the reaction is absorbed into 5691 g of water and 21 degrees C, what is the final temperature of the water?
A particle rotates on the surface of a sphere. The angular momentum of the particle can be considered as a vector starting at the center of the sphere and pointing outward.
If a piece of aluminum with mass 3.90 g and a temperature of 99.3 degrees celcius is dropped into 10.0 cm cubed of water at 22.6 degrees celcius, what will be the final temperature of the system?
chromatogram for the presence of compounds other than isopentyl acetate. Explain the presence of any additional compounds
Finding Number of Atoms in a Molecule from Molecular Weight, As determined from the gas law, the molecular weight of a substance is eight times the atomic weight
Calculate the wavelength of the light that is absorbed for the electron's transition from n = 5 to n = 6 in Be3+ ion. (ans in nm.)
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