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All the reagents in the reaction below are in aqueous form. The preliminary concentration of A is 4.5 x 10^-4 M. The initial concentration of B is 5.3 x 10^-3 M. At equilibrium, the concentration of A is 1.2 x 10-4 M. Explain what is the value of Keq?A + 2B <----> C + 3D
a student preformed an analysis of a sample for its calcium content and got the following results14.92 14.91 14.88
There are approximately 2.60x10^13 red blood cells with atotal of 2.90g of iron. On the average, how many iron atoms are present in each red blood cell. (molar mass (Fe)= 55.85g
which salts are more effective for cold and hot packs kno3 nh4no3 mgso4 cacl2 mgcl2? which are most cost effective?
Why is it advisable to run a mixed melting point determination on samples of two different compositions before concluding that the two compounds are identical
When you allow a can of carbonated beverage to sit open so that the carbon dioxide is released to the atmosphere ,does the pH of beverage remain the same,increase or decrease. Explain
When an aqueous solution of K2CrO4 is mixed with an aqueous solution of AgNO3, a brown precipitate forms. a) Write the balanced molecular equation (including all products and phases) for this reaction.
Properties of Electrolyte Solutions, In the winter of 1994, record low temperatures were registered throughout the United States. For example, in Champaign, Illinois, a record low of -29 F was registered.
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M FeBr3, 0.6 M CaCl2, 0.5 M Ba(NO3)2, 0.2 M (NH4)2SO4, 0.9 M KOH
A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the mass
How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP?
antimony is produced by the reaction of antimony oxide sb4o6 with carbon according to the following unbalanced
gallium-68 decays by positron emission with a half-life of 68.3 min. how much 68ga remains from a 10.0 mg sample after
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