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Chemistry, 30.11.2020 22:30, gutierrezaandrea56
Which of the following is true about an atom of iron and an atom of copper?
They have different masses.
Both have the same properties.
They have an equal number of protons.
Both have different types of sub-atomic particles.
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Answers: 3
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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
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Which of the following is true about an atom of iron and an atom of copper?
They have different mas...
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