Answer to Question #306194 in General Chemistry for zero

Question #306194

How many liters of a stock solution of 2.50M KNO3 are needed to prepare 10 L of 0.78M KNO3?

Expert's answer

M1V1=M2V2

We have M1 = 2.5M

M2 = 0.7M

V2 = 10L

We need to find V1 = M2V2/M1

= (0.7M x 10L)/2.5M

= 2.8L

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