Question

What would have the highest concentration of hydrochloric acid?

Answer 1

The reagent used in laboratories is HCldissolved in water, which is why you'll find in the label that it is around 37%HCl in weight. The other 63% is water. Considering 37% as the maximumsolubility of HCl, you can calculate themolarity using the solution density (1.2 g/mL) and HCl's molar mass (36.46 g/mol).

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Answer 2

The HCl molecule is, at standard conditions, a gas. The reagent used in laboratories is HCl dissolved in water, which is why you'll find in the label that it is around 37% HCl in weight. The other 63% is water.

Considering 37% as the maximum solubility of HCl, you can calculate the molarity using the solution density (1.2 g/mL) and HCl's molar mass (36.46 g/mol).

For 1000 mL of solution, you will have 1200g of weight, of which 37% is HCl: 444g.