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A 49.9 g sample of barium hydroxide octahydrate, Ba(OH)2·8H2O, is dissolved in water and the solutioAqueous Chemistry Chemistry Question

Question

A 49.9 g sample of barium hydroxide octahydrate, Ba(OH)2·8H2O, is dissolved in water and the solution is diluted to give a final volume of 2.50 L. What is the concentration of the hydroxide ion in this solution?

A.

0.0634 M

B.

0.127 M

✓ Correct
C.

0.190 M

D.

0.634 M

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