How many moles of will be present in of a solution of specific gravity , containing by mass?

Question

How many moles of  will be present in  of a solution of specific gravity , containing   by mass?

Canvas Classes · Accepted Answer

Strategy:
 To find the number of moles of  in a solution given its specific gravity and mass percentage, first calculate the total mass of the solution (Volume  Density), then the mass of the pure solute, and finally convert that mass to moles using the molar mass.

Step 1: Calculate the total mass of the solution
Specific gravity refers to the ratio of the density of the substance to the density of water (). Thus, Density .

Step 2: Find the mass of pure } \ce{HCl}
The solution is   by mass.

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