Chemistry, 28.11.2019 21:31 temperent6049
Alaboratory utilizes a mixture of 10% dimethyl sulfoxide (dmso) in the freezing and long-term storage of embryonic stem cells. if dmso has a specific gravity of 1.1004, calculate the specific gravity, to four decimal places, of the mixture (assume water to be the 90% portion).
Answers: 3
Chemistry, 22.06.2019 00:10
According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram
Answers: 3
Chemistry, 22.06.2019 12:30
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
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 21:00
One similarity and one difference between an element and a mixture of elements
Answers: 1
Alaboratory utilizes a mixture of 10% dimethyl sulfoxide (dmso) in the freezing and long-term storag...
Mathematics, 04.12.2020 16:40
Business, 04.12.2020 16:40
Computers and Technology, 04.12.2020 16:40
Computers and Technology, 04.12.2020 16:40
Health, 04.12.2020 16:40