Chemistry, 01.10.2019 19:30 shanicar33500
What is the percentage by mass of solution formed by dissolving 27.0 grams of hcl in 102.0 grams of water? 26.5% 20.9% 18.2% 16.7%
Answers: 1
Chemistry, 22.06.2019 13:30
What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves
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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.
Answers: 3
Chemistry, 22.06.2019 19:00
Convert the temperature of dry ice, โ77 โc, into degrees fahrenheit and kelvin.
Answers: 2
What is the percentage by mass of solution formed by dissolving 27.0 grams of hcl in 102.0 grams of...
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