Describe how you would prepare each of the following aqueous solutions, starting with solid kbr: (a) 0.75 l of 1.5 x 10^-2 m kbr, (b) 125g of 0.180m kbr, (c) 1.85 l of a slouotion that is 12.0% kbr by mass (the density of the solution is 1.10 g/ml) (d) a 0.150 m solution of kbr that contains just enough kbr to precipitate 16.0g of agbr from a solution containing 0.480 mol of agno3
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Chemistry, 22.06.2019 16:50, TrueKing184
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
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Chemistry, 23.06.2019 00:00, sanaiajohnson56
In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above
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Describe how you would prepare each of the following aqueous solutions, starting with solid kbr: (a...
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