The given information is:
Mass of C2H6O: 73.1 g
Volume of solution: 2.22 L
To express the answer using three significant figures, we need to round the final answer to three decimal places.
To calculate the concentration of C2H6O in the solution, we can use the formula:
Concentration (in g/L) = Mass of solute / Volume of solution
Substituting the given values into the formula, we have:
Concentration (in g/L) = 73.1 g / 2.22 L
Calculating the result gives us:
Concentration (in g/L) = 32.95 g/L
To express the answer using three significant figures, we round the result to three decimal places:
Concentration (in g/L) = 32.95 g/L
Therefore, the concentration of C2H6O in the solution is 32.95 g/L, rounded to three significant figures.
I hope this helps! Please feel free to ask any questions if necessary. :)