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Which of the following is the correct formula of borax?

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${Na}_{2} [B_{4} O_{5} (OH)_{4}] \cdot 2 H_{2} O$

${Na}_{2} [B_{4} O_{5} (OH)_{4}] \cdot 4 H_{2} O$

${Na}_{2} [B_{4} O_{5} (OH)_{4}] \cdot 6 H_{2} O$

${Na}_{2} [B_{4} O_{5} (OH)_{4}] \cdot 8 H_{2} O$

answer is D.

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Detailed Solution

A powdered white mineral known as borax, also known as sodium tetraborate, has been used as a cleaning agent for many years.

Borax has the following chemical formula: ${Na}_{2} [B_{4} O_{5} {(OH)}_{4}] \cdot 8 H_{2} O .$

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