Chemistry, 22.01.2020 22:31 francisco42002
The reaction h+ + hco3â€"" < --> h2co3 is a part of the respiration process. it takes place at . a. the lungs and tissue cells b. neither the lungs nor tissue cells c. the tissue cells d. the lungs
Answers: 1
Chemistry, 21.06.2019 17:00, debordc17
Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects
Answers: 2
Chemistry, 22.06.2019 18:00, kyllow5644
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 reaction h+ + hco3â€"" < --> h2co3 is a part of the respiration process. it takes place a...
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