one can't use the water displace ment method since the substance is soluble. also since its irregularly shape there will be no deffinite dimentions for it...
2006-07-11 20:19:59 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Place the substance in a thin polythene bag with suitable dimension and suck the air inside it by a vacuum pump. Tie its mouth with string. Immerse it in the water in an Archimedis cylinder. Collect the displace water and measure its volume. Remove the substance from the polythene bag and weight it. Now you work out the ratio, WEIGHT / VOLUEM. This will give the density of the substance. If you want to measure the volume accurately, measure the volume of the empty polythene bag in the same way and deduct its volume from that of the volume of (substance + polythene bag) before calculating the density.
2006-07-11 21:42:47 · answer #1 · answered by K.J. Jeyabaskaran K 3 · 0⤊ 0⤋
float an empty glass beaker in water, note where the water line comes to on the beaker.
pour the gunk in the beaker and note the new position
assuming the beaker is of a shape where you can compute the volume of the beaker between the two hash marks, you have your volume of water displaced by the substance, so you have your weight.
I guess I am having a hard time visualizing something which is water soluble but has a rigid irregular shape. Cram it into the beaker until it is flat in the beaker!
2006-07-11 21:57:59 · answer #2 · answered by samsyn 3 · 0⤊ 0⤋
you should use displacement of a liquid. most of the time you should apply water because the liquid. i'm particular you've executed experiments both in the kitchen or lab the position you position a substance (like a stone) in a commonly used quantity of water. you know the substitute in the water element is the quantity of the stone or inspite of. you should do an same element the following, in common words not use water. I advise cyclohexane or another available non-polar solvent. the clarification why I chosen a nonpolar is because if it dissolves in water, the sweet must have polar characteristics.
2016-11-01 21:50:48 · answer #3 · answered by ? 4 · 0⤊ 0⤋
The displacement method of measuring volume works for any liquid, so just put the object in something it doesn't dissolve in. Oil will usually work.
2006-07-11 20:25:02 · answer #4 · answered by Pascal 7 · 0⤊ 0⤋
Use the same method but instead of water use a non-polar solvent such as oil.
2006-07-11 20:26:21 · answer #5 · answered by Nick N 3 · 0⤊ 0⤋
Wow, I guess I can't help you. Weigh it.
2006-07-11 20:23:51 · answer #6 · answered by soulfli 3 · 0⤊ 0⤋