Chemistry, 27.06.2019 02:30 avanelson01
An individual with an excellent sense of smell is handed a bottle of perfume. after smelling the perfume, he reports that the perfume contains a predominant smell of roses with a faint touch of vanilla. if the perfume is made from water, rose essence, and a splash of vanilla, it is most likely a. a mixture. b. a gas. c. an element. d. a compound.
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Chemistry, 21.06.2019 17:00
What is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide
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Chemistry, 22.06.2019 18:00
Answer asap need to be answered 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
This statement about matter and its behavior is best classified as a
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Chemistry, 23.06.2019 02:30
When the ionic compound nabr dissolves in water, brβ ions are pulled into solution by the attraction between what two particles? a. the na+ and brβ ions b. the na+ ion and the negative end of a water molecule c. the brβ ion and the positive end of a water molecule d. the brβ ion and the negative end of a water molecule
Answers: 1
An individual with an excellent sense of smell is handed a bottle of perfume. after smelling the per...
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