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Three trials to determine concentration of unknown substance. Values: .210 M,.198M, .203 M . The actual concentration is .135 M.
Identify the oxidized substance, the reduced substance, the oxidizing agent, and the reducing agent in the following redox reaction: Fe(s)+Cu^(2+)(aq) ---> Fe^(2+)(aq)+Cu(s)
Calculate the ionic strength of a solution containing 0.010 M calcium sulfate and 0.010 M sodium chloride. Show all work.
Sodium sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
If the earths average temperature is 288K,what fraction of the atmosphere absorbed infrared radiation? what is the temperature of this atmospheric layer? if this fraction increased 5% what would be the earths new average temperature?
Metallic copper is formed when aluminum reacts with copper(II) sulfate. How many grams of metallic copper can be obtained when 54.0 g of Al react with 319 g of CuSO4?
If you add a solvent called "dioxane" to water, a homogenous mixture forms. Dioxane and water have the same boiling point (100oC). How do you explain that the mixture of the two compounds shows a boiling point that is lower than the one found for ..
Two different solutions were prepared. Solution A was prepared by dissolving sodium acetate in methanol and solution B was prepared by adding potassium methoxide to acetic acid.
Describe Alkene Products, When tert-pentyl bromide is treated with 80% ethanol, the amounts of alkene products indicated below are detected on analysis.
the molar mass of the compund is 92g/mol. what is the empirical formula and molecular formula of he compund?
A compound, C5H12O, has an 1H NMR spectrum showing peaks at delta 0.9 (6 H, triplet), 1.5 (4 H, quintet), and 1.9 (1 H, singlet), and 3.4 (1 H, multiplet).Draw this molecule.
The initial rate of the following reaction when [A]=[B]=0.200M is 5.00X10^-3 M/s, What wil the rate be after 0.040M of A reacts with B?
Calculate the concentrations of all species in a 0.790 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
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