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How much sucrose (C12H22O11) is needed to make 2 L of a 0.1 M aqueous solution?

1. 68.4 g
2. 17.1 g
3. 34.2 g
4. 136.8 g

Correct answer: 68.4 g

Solution

Moles = 0.1 * 2 = 0.2 mol; mass = 0.2 * 342 = 68.4 g.

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