Answers: 3
Chemistry, 22.06.2019 05:50
Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.
Answers: 2
Chemistry, 22.06.2019 07:20
2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here
Answers: 1
Chemistry, 22.06.2019 16:50
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 22:10
Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
Answers: 3
What percentage solution will you get if in 550 cm³ = 550g (this only applies to water where the vol...
Mathematics, 29.09.2019 04:00
English, 29.09.2019 04:00
English, 29.09.2019 04:00
Mathematics, 29.09.2019 04:00
Mathematics, 29.09.2019 04:00
Chemistry, 29.09.2019 04:00
Geography, 29.09.2019 04:00
Social Studies, 29.09.2019 04:00
History, 29.09.2019 04:00
Mathematics, 29.09.2019 04:00
English, 29.09.2019 04:00
History, 29.09.2019 04:00
Chemistry, 29.09.2019 04:00