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Titration of 37 \rightarrow Ca3(PO4)2 (S) + 6 H2O (L)
What Is the Molarity

Question 20

Multiple Choice

Titration of 37.22 mL of Ca(OH) 2 solution requires 31.19 mL of 0.219 M H3PO4 solution according to the following equation:
3 Ca(OH) 2 (aq) + 2 H3PO4 (aq) \rightarrow Ca3(PO4) 2 (s) + 6 H2O (l)
What is the molarity of the base in this reaction?


A) 0.275 M
B) 0.122 M
C) 0.184 M
D) 0.392 M

Correct Answer:

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