Câu 47: Cách pha chế dung dịch từ hoá chất tinh khiết, phát biểu sai:
1 answer:
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Answer:
Volume of stock solution needed = 6.0299 mL
Explanation:
<u> </u>Dilution consists of lowering the amount of solute per unit volume of solution. It is achieved by adding more diluent to the same amount of solute.
This is deduced when thinking that both the dissolution at the beginning and at the end will have the same amount of moles.
<u>Data:</u>
M1 = 6.01 M stock solution concentration
M2 = 0.3624 M diluted solution concentration
V2 =100 mL diluted solution volume
V1 = ? stock solution volume
M1 * V1 = M2 * V2
Answer:
Coefficient of
Coefficient of =8
Explanation:
We are given that a reaction in which reacts with
We have to find the coefficient of each reactants in balanced reaction
Coefficient is defined the constant value multiplied with a reactant in a reaction.
Coefficient of =3
Coefficient of
Coefficient of
Coefficient of
Coefficient of
Coefficient of KOH=2
Hence, Coefficient of and coefficient of