What is the molarity of phosphoric acid used on soft drinks?

5.1 \times 10^{- 3}

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1.5 \times 10^{- 3}

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3.1 \times 10^{- 3}

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2.1 \times 10^{- 3}

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Solution

The correct option is A $5.1 \times 10^{- 3}$
Ans:A
molarity of phosphoric acid used on soft drinks = $\frac{d e n s i t y \times v o l u m e \times m a s s . c o m p o s i t i o n}{m o l o r m a s s \times 1 L}$
= $\frac{0.05 \times 1000 m l \times 1}{97.99 \times 1 L \times 100}$
=5.1 $\times 10^{- 3}$

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