If 421 × 10 ^{− 3} Moles of Ca²⁺ Reacts with with Excess

question 7

Multiple Choice

If 4.21 × 10 ^{− 3} moles of Ca²⁺ reacts with excess PO₄^{3 −} to form calcium phosphate, how many moles of the solid will form?

• A) 3.04 × 10 ^{− 2}
• B) 6.74 × 10 ^{− 3}
• C) 1.40 × 10 ^{− 3}
• D) 4.21 × 10 ^{− 3}

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