Question: how to find the percentage of water in popcorn?
Answer: The popped corn is then weighed. The mass of water driven off can be found by subtracting the mass of the popped corn from the mass of the unpopped corn. The percentage of water is found by dividing the mass of water by the mass of the sample of unpopped kernels and multiplying by 100. Weigh a 50-mL beaker.