Chemistry, 26.05.2021 04:50 PerfectMagZ
Select the correct answer.
What is the molar mass, in grams, of a mole of an element equal to?
ОА
the number of electrons in the element
ОВ.
the atomic weight of the element
O c.
the atomic number of the element
D.
the number of neutrons in the element
Answers: 1
Chemistry, 22.06.2019 12:30
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
Answers: 2
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
Select the correct answer.
What is the molar mass, in grams, of a mole of an element equal to?
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