Question

How many moles of sodium chloride (NaCl) solute are in 205 grams of a 92.5 percent by mass solution? (3 points) 2.63 mol NaCl 3.24 mol NaCl 7.71 mol NaCl 1.92 mol NaCl

Answer 1

3.24

Step-by-step explanation:

you simply divide 205 by the periodic table mass of both elements combined (35.453+22.99). This comes out to be 205/58.443, which is 3.50769. Then, multiply this by 0.925 and you get a figure around 3.24