Question

Question #82eec

Answer 1

The answer is `14.5%`.

A solution's percent concentration by mass is defined as the amount of solute devided by the tolta mass of the solution and multiplied by 100.

Before doing any actual calculations, we could try and estimate the concentration; `44g` is close to `1/6`th of the total mass (the mass of the solute - in this case, sugar - plus the mass of the solvent - water - ), so we would expect a concentration of about `16%`.

So, `c% = m_(solute)/m_(solution) * 100 = (44 g)/((44+259)g) * 100 = 14.5%`, which is close to our initial estimate.