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The solubility of sodium iodide (NaI) as 184g per 100mL of water at 25 degrees C
Explain what would be the molarity of a saturated aqueous solution of NaI prepared at 25 degrees C, pretentious that the added NaI does not add significantly to the volume of water?
1. calculate the number of calories needed to increase the temperature of 50.0 g of copper metal from 21.0 degrees c to
A solution is prepared by dissolving 396g of sucrose (C2H22011) in 624g of water. What is the vapor pressure of this solution at 30 degrees.
When 2 mol of Potassium Chlorate crystals decompose to Potassium Chloride crystals and Oxygen gas at a constant temperature and pressure
When doing the kinetic trial, Peyton mistakenly omitted the starch solution from the kinetic trials. How will this omission change the appearance of the resultant solution (from mixing solutions A&B) from that of a correctly completed expiernment?..
Describe how to prepare a 500.00mL of a pH 10.00, 1.00M carbonate buffer using the following reagents- NaHCO3 (FM 84.007 g/mol), 6.0M HCl and 6.0M NaOH (H2CO3 Ka1 = 4.46x10 -7. Ka2 = 4.69x10 -11)
A light green liquid, and informed that someone accidentally spilled a few small flecks of an intensely green-colored crystalline dye in a rather expensive solvent, so it doesn't make sense to throw away the very slightly contaminated solvent.
Benzene is evaporated into a room at 1 gram per minute the room is 6 by 6 by 3 meters and has a ventialtion rate of 10 meters cubed per minute what is the steady state concentration of benzene in the room
Compute the half-life (in s) of a first-order reaction if the concentration of the reactant is 0.0541 M 27.6 s after the reaction starts as well as is 0.0106 M 40.4 s after the reaction starts.
Draw the structure of the peptide WRCFQ. Show the ionization state that would be the major form at pH 7. (Note: this question addresses your knowledge of the one or three letter codes for amino acids,
Write out the chemical equation and the equilibrium constant expression based on the concentration.
The next three (3) problems deal with the titration of 461 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10-11) with 1.1 M NaOH. What is the pH of the solution at the 2nd equivalence point
What are some reasons why there would be a difference between the expected and actual values for the moles of copper oxide produced from heating copper in the air.
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