Chemistry, 05.04.2021 05:30 tenleywood
URGENT HELP PLS Determine the percent composition by the mass of oxygen in the compound C6H12O6
Answers: 1
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.
Answers: 1
Chemistry, 22.06.2019 19:00, andrecoral105
A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.
Answers: 1
Chemistry, 22.06.2019 23:00, DESI111609
What is the average rate of the reaction between 10 and 20 s?
Answers: 1
URGENT HELP PLS
Determine the percent composition by the mass of oxygen in the compound C6H12O6...
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