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The solubility of MnSO4 in water at 20C is 70g per 100mL of water. Is a solution at 20C that is 4.22M in MnSO4 is best explained as- saturated, unsaturated, supersaturated or hydrated?
The concentration of SO42- (aq) in a sample of river water can be determined using a precipitation titration in which a salt of Ba+ (aq) is the standard solution and BaSO4 (s) is the precipitate formed. What is the concentration of SO42- (aq) in a..
a sample of ammonia gas at 1.2 atm compressess from 500 ml to 250 ml. if the temerature remains constant, what is the new pressure of the gas? what formulas were used?
Calculate the cell potential for a galvanic cell made from an iron electrode in a 1.75 M solution of Fe(NO3)2 and a silver electrode in a 5.00 x 10-3 M solution of AgNO3 at 298 K. Eºcell
It phosphoresces at 500 nm. If the ratio of the transition probabilities for stimulated emission for the S* --> S to the T --> S transitions is 1.0 x 10^5, what is the half-life of the phosphorescent state
Both (E)- and (Z)- 2-cholorobutenedioic acids dehydrochlorinate to give acetylene dicarboxylic acid. The Z acid reacts about 50 times faster than the E acid. Explain.
How much of a 15.0M HNO3 solution should you use to make 850.0mL of a 0.300M HNO3 solution
Molecular iodine, I2 (g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s-1. If you start with 5.2x10^-2 M I2 at this temp.
Determine the enthalpy change for the oxidation of ethanol to acetic acid, CH3CH2OH() + O2(g) -> CH3COOH() + H2O() given the thermochemical equations below.
What tools glassware would i need to carry out this procedure. 100.0 mL of 2,500. ppm copper (II) acetate solution using solid cupric acetate
blood alcohol content bac is often reported in weight-volume percent wv. for example a bac of 0.08 corresponds to 0.08
You are performing site-directed mutagenesis to test predictions about which residues are essential for a protein's function. Which of each pair of amino acid substitutions listed below would you expect to disrupt protein function the most
Describe the steps to be taken in the laboratory if a large bottle of acetone (noncorrosive, nontoxic, highly volatile, water-soluble, flammable solvent) is broken and spilled.
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