mass percent of lead= (2.03/2.34 )X100= 86.75% mass percent of sulfur= (0.31/2.34) X 100= 13.24%
To calculate the mass percent of lead and sulfur in galena first we need to find the mass sulfur.
mass of sulfur= total mass of galena - mass of lead , 2.34-2.03=0.31g now to calculate the mass percent of lead and sulfur in galena we use the formula = {mass of chemical/mass of total compound) X 100, thus mass percent of lead= (2.03/2.34 )X100= 86.75% mass percent of sulfur= (0.31/2.34) X 100= 13.24%.The mass percentage used to describe the solution composition indicates the mass of solute contained in a given mass of solution. The amount of solute is measured in either mass or moles.
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