Question

A compound is prepared from the
mineral colemanite by boiling it with a
solution of sodium carbonate. It is white
crystaline solid and used for inorganic
qualitative analysis.
a. Name the compound produced.
b. Write the reaction that explains its
formation.​

Answer 1

Colemanite = Ca2B6O11

Product = Sodium tetraborate

Reaction :

2Ca2B6O11 + 4Na2CO3 ------>

2Na2B4O7 + 4CaCO3 + 2NaOH

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