united states gained territory in the early 19th
Answers: 2
Chemistry, 21.06.2019 22:20
One or more substances changing into one or more substances is an example of a
Answers: 1
Chemistry, 21.06.2019 23:00
What is the volume of the fluid in the graduated cylinder with accuracy and measured to the correct degree of precision? 41.2 ml 42.0 ml 41.23 ml 41.89 ml
Answers: 1
Chemistry, 22.06.2019 14:30
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)β2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2
Answers: 3
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
The time line shows that the major way the
united states gained territory in the early 19th
united states gained territory in the early 19th
Mathematics, 16.02.2021 22:30
English, 16.02.2021 22:30
Mathematics, 16.02.2021 22:30
Business, 16.02.2021 22:30
Mathematics, 16.02.2021 22:30
Social Studies, 16.02.2021 22:30
Physics, 16.02.2021 22:30
Mathematics, 16.02.2021 22:30
Mathematics, 16.02.2021 22:30
History, 16.02.2021 22:30
Mathematics, 16.02.2021 22:30