Problem: Classify each given species as a strong acid, weak acid, strong base or weak base.

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We’re being asked to identify classify each species if they are strong acid/base or weak acid/base

Strong acids are considered strong electrolytes. They completely dissociate into ions when dissolved in water.

Strong binary acids – paired with a highly electronegative atom

Common strong binary acids are:             HCl, HBr, and HI


Strong oxyacids (or oxoacids) - have 2 or more oxygens than hydrogens

Common strong oxyacids are:                 HNO3, HClO3, HClO4, H2SO4

Exceptions to the rule are:                       Oxalic acid (H2C2O4and Iodic acid (HIO3)

▪ both have 2 more O than H but are weak acids because carbon and iodine have low electronegativity

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Classify each given species as a strong acid, weak acid, strong base or weak base.

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Our tutors have indicated that to solve this problem you will need to apply the Identifying Acids and Bases concept. You can view video lessons to learn Identifying Acids and Bases. Or if you need more Identifying Acids and Bases practice, you can also practice Identifying Acids and Bases practice problems.