we did an experiment, and the solution that was isotonic to the outer solution did not maintain a constant weight.. the weight fluctuated a little here and there (just a little, though). a question i have to answer is:
Why did this bag not maintain a constant weight throughout the experiment? (Hint: molecules are in random motion)
2007-04-05 15:35:30 · 4 answers · asked by crazeberry11 1 in Science & Mathematics ➔ Biology
since the two solutions are isotonic, diffusion of water into and out of the bag would be equal, so no weight would be gained or loss
2007-04-05 15:40:42 · answer #1 · answered by Troy 6 · 0⤊ 1⤋
It's possible that the water molecules did not enter and leave the bag in equal amounts, so they would change the weight of the bag.
Sometimes when I have done an experiment like this, I had different outcomes due to:
-- not having the bag tied securely
-- not having the bag fully hydrated before starting the experiment
2007-04-05 15:56:16 · answer #2 · answered by ecolink 7 · 0⤊ 0⤋
we are just reviewing it I forget most of it from last year but cellular respiration is the way that plants get rid of the products of photosynthesis such as Carbon Dioxide and Glucose.
2016-05-18 01:58:10 · answer #3 · answered by ? 3 · 0⤊ 0⤋
it may have fluctuated but once it settles they should be equal. Maybe your experimental error.
2007-04-05 15:43:42 · answer #4 · answered by Anonymous · 0⤊ 0⤋