Suppose a student did not fully redissolve the al(oh)3 that initially formed upon the addition of h2so4. predict and explain how this would impact the apparent percent yield this student determines.

Percent yield is the measured recovery of a substance in grams divided by the theoretical amount of substance expected in grams (times 100 to convert to %). Undissolved Aluminum trihydroxide would add mass to the Aluminum sulphate one is making here. The measured mass would be inaccurately high, increasing the percent yield calculated.