a) Write the balanced equation for the reaction

Q: 4.) Calculate the pH of the 6.00M sodium hydroxide stock solution. (This will take 2 steps).

A: According to Bartlby guidlines I solve only first question , hou post second question separately

Q: Br H O

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A: Below attached file showing the details answer.  All the best.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".