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Using the appropriate equation from your lecture notes, how much of a 5 gram sample will be extracted from 20mL of water using 15mL of an organic solvent and the partitian coefficient is K = 0.50.(nearest hundredth)
According to the above expression how many moles of KHC8H4O4 are needed to neutralize 25.00 mL of 0.10 M NaOH
By mass spectral analysis, a sample of strontium is known to contain 2.64x1010 atoms of Sr-90 as the only radioactive element. The absolute disintegration rate of this sample is measured as 1238 disintegrations per minute. Calculate the half-life ..
portion of the stock solution and dilute it to a total volume of 0.550L what will be the concentration of the final solution?
A student added more KSCN solution that instructed when making standard solution. assuming no other errors were made in the experiment
Four anions were confirmed present by the formation of a precipiate. Which are so confirmed? Write a formula and indicate the color
degrees Celsius) is placed in 20.6 g of water at 25.00 degrees Celsius. What is tins specific heat if the equilibrium temperature is 47.75 degrees Celsius?
A 0.204 g sample of a CO3^2- antacid is dissolved with 25.0 mL of a 0.0981 M HCl. The hydrochloric acid that is not neutralized by the antacid is titrated to a bromophenol blue endpoint with 5.83mL of 0.104 M NaOH. a) Calculate the number of moles..
Determine the empirical and molecular formulas of anthraquinone.
How many moles of NaCl2 can be formed in the reaction of 5.00 molof Ni and 10.0 mol of HCl
a solution was prepared by mixing 50 ml of 0.100 M HCl with enough water to get 250 ml solution . what is the M of the final solution of hydrochloric acid?
In an experiment, 5.00 L of N2 is saturated with water vapor at 22°C and then compressed to half its volume at constant T. (a) What is the partial pressure of H2O in the compressed gas mixture?
If 28 mL of NaCl reacts completely with 46 mL of 0.44 AgNO3, what is the molarity of the NaCl solution? The reaction is: AgNO3 + NaCl = AgCl + NaNO3
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