Pergunta

6.7 - Other Units (C) -Concentrated"hydrochloric acid is an aqueous solution of 37.3% HCl that is co commonly used as a laboratory reagent. The density of of this solution is 1.19g/mL What mass of 125gHCl 333gHCl 945gHCl 269gHCl Multiple Choice 1 point
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NataliProfissional · Tutor por 6 anos
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To find the mass of HCl in the concentrated hydrochloric acid solution, we need to use the given percentage concentration and the density of the solution.<br /><br />Given information:<br />- Concentration of HCl: 37.3%<br />- Density of the solution: 1.19 g/mL<br /><br />Step 1: Calculate the mass of HCl in 1 mL of the solution.<br />Mass of HCl in 1 mL = (37.3% × 1 mL) × (1.19 g/mL) = 44.33 g<br /><br />Step 2: Calculate the mass of HCl in 1 L (1000 mL) of the solution.<br />Mass of HCl in 1 L = 44.33 g/mL × 1000 mL = 44,330 g<br /><br />Therefore, the correct answer is:<br />$945gHCl$
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