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ratelena [41]
3 years ago
12

What is the concentration of a solution prepared by placing 20. mL of 0.12 M K2S in a graduated cylinder and pouring water until

you reach the 100.0 mL mark (the final volume after mixing the solution with water is 100.0 mL).
Chemistry
1 answer:
MAVERICK [17]3 years ago
3 0

Answer: 0.024 M

Explanation:

According to the neutralization law,

M_1V_1=M_2V_2

where,

M_1 = molarity of stock solution = 0.12 M

V_1 = volume of stock solution = 20.0 ml

M_2 = molarity of diluted solution = ? M

V_2 = volume of diluted solution = 100.0 ml

Putting in the values we get:

0.12M\times 20.0=M_2\times 100.0

M_2=0.024

Therefore, the concentration of the resulting solution is 0.024 M.

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