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You want to make a 0.20M solution of K2CO3. How many grams of K2CO3 is required to make 2000.0 mL of this 0.20M solution.
A geothermal system is initially more expensive to set up than a conventional heating and cooling system, but the annual operating costs are much cheaper.
A solution of potassium permaganate is standardized with iron metal, a primary standard. The iron is dissolved in acid, reduced to Fe(II), and titrated with permanganate.
What wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction.
A volumetric pipette was found to deliver 5.01 mL of ethanol at 24°C. The mass of the ethanol was measured to be 3.9462 g. What is the density of ethanol at 24°C
Use equations and words to explain how 2Pz, 2Px, and 2Py orbitals are constructed from 2P orbitals and the appropriate m1 components.
If 1.13 x 104J of heat is added to a water sample and the temperature rises from 88.0c to its boiling point, what mass of water is in the sample?
What is the balanced equation for the complete combustion of 2,2,4-trimethylpentane? Show how butane can be converted to 2,2,4-trimethylpentane using petroleum refining processes
Which of the following changes to a voltaic cell would cause an increase in potential (i.e., more positive Ecell)
a 10 ml sample of a solution of pbclo32 was diluted with water to 170 ml. a 100 ml sample of the dilute solution was
Provide an explanation on why the methylene unit between the two carbonyl groups is more acidic than each of the methyl groups in acetylacetone. In the reaction conditions, what is the base responsible for the deprotonation of acetylacetone
Find the most likely composition of A and B. That is, what are the two gases. For the purpose of this exercise, assume the gases are pure, and are composed of the most common isotope.
Explain why this reaction forms the same volume of hydrogen but takes place much more slowly than the reaction of the same mass of magnesium with 5.0 cm3 of 2.0 mol/dm3 hydrochloric acid.
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