Qualitative and Quantitative AnalysishardNUMERICAL

How many molecules of water of crystallization are present in one formula unit of Borax used for theQualitative and Quantitative Analysis Chemistry Question

Question

How many molecules of water of crystallization are present in one formula unit of Borax used for the borax bead test before any heating occurs?

Answer: 10

💡 Solution & Explanation

The chemical formula for borax is $Na_2B_4O_7 \cdot 10H_2O$. It contains exactly 10 molecules of water of crystallization, which are lost upon heating to form the glassy bead.

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