QUESTION: Water is added to 235.4 grams of K₂Cr₂O7. The solution is mixed and then more water is added to the solution until the

Question

QUESTION: Water is added to 235.4 grams of K₂Cr₂O7. The solution is mixed and then more water is added to the solution until the solution's final volume is 400 milliliters. The solution is mixed for a second time. What is the molarity of the solution? 
0.002 M
0.6 M
6 M
0.005 M
1 M
2 M

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