Calculate the strength and molarity of a solution containing 15 g of KMnO4 in 200 ml of the solution . Also find out the the molarity of the resultant solution prepared by adding 400 ml water to this solution .
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0
Explanation:
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Concentrations may be quantitatively assessed using a wide variety of measurement units, each convenient for particular applications. Molarity (M) is a useful concentration unit for many applications in chemistry. Molarity is defined as the number of moles of solute in exactly 1 liter (1 L) of the solution:
M
=
mol solute
L solution
M=mol soluteL solution
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Answered by
1
Answer:
Molarity = moles of solute / Volume of solution in litre
Explanation:
moles of solute = 15 / 158
volumes = 200/1000
M = 15/158 ÷ 200 / 1000
= 15 / 158 × 1000 / 200
= 0.47 M
M1 × V1 = M2 × V2
0.47 × 200 = M2 × 400
94/400 = M2 ( resultant molarity )
M2 = 0.235 M
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