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An unknown solid mixture containing benzoic acid,copper(II)sulfate and sand. She added 15mL.of acetone to her sample. Which component of the mixture dissolved in the acetone?
Calculate the total pressure if the volume of the reaction container is then (i) doubled; or (ii) reduced 7-fold.
what speed would this quasar seem to be receding from us? Give your answer in km/s and as a fraction of the speed of light.
Suggest a reasonable synthetic strategy for the synthesis of 4-bromo-2-nitro-benzoic acid from o-nitrotoluene
Assuming an Sn1 reaction mechanism, predict the major organic product(s) of (s)-3,3-dimethy-2-butanol reacted with HCl.
What is an alternative analytical procedure for determining the quantity of water
select (a) best and (b) poorest electrical conductors from the following solutions and explain the reason for your choices: 0.10 M NH3, 0.10 M NaCl, 0.10 M CH3OOH(acatic acid), 0.10 M CH3CH2OH(ethanol)
A weak acid (HA) has a pKa of 4.999. If a solution of this acid has a pH of 4.459, what percentage of the acid is not ionized
Why does BrO2 have a free radical? explain the bonding that happen, and why it happens. Why does NO have a free radical? I know it's because there in one unpaired electron
Calculate the pH of the 0.39M NH3/ 0.73M NH4CL buffer system . B) what is the pH after the addition of 20.0 mL of 0.075M NaOH
A sample of an unknown biochemical compound is found to have a percent composition of 45.46% carbon, 7.63% hydrogen, 10.60% nitrogen and the balance oxygen. What is the empirical formula for this compound
Identifying An Unknown Liquid And Precipitate. A high-boiling bp = 202 - 204 degrees C, burns with a yellow, sooty flame. Sodium fusion indicates that halogens, nitrogen and sulfur are not present. It is not soluble in water, dilute sodium bicarbo..
A balloon was filled to a volume 2.50 L when the temperature was 30.0 degrees C. What would the volume become if the temperature dropped to 11.0 degrees C
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