Answered

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What is the initial concentration of a solution if 40.0 mL is diluted to make 720 mL of a 0.45 M solution?

Sagot :

Answer:

8.1 M

Explanation:

What is the initial concentration of a solution if 40.0 mL is diluted to make 720 mL of a 0.45 M solution?

LET Y = INITIAL CONCENTRATION

SO

Y TIMES 40/720 = 0.45 m

SO

Y= (0.45) X 720/40=

0.45 X 72/4 =

0.45 X 18 =8.1 M

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