If you want to have substance A added at substance B "at 3% by weight", what does that mean?
2006-06-29 07:34:39 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Substance A added to substance B at 3% by weight.
2006-06-29 07:35:09 · update #1
3% by weight means that 3% of the total weight of the mixture is made up of your substance. For examples, if you had an alloy that was 3% gold by weight, of the total weight of the alloy, 3% of it is gold... or the amount of resin in a paper product could be measured to be 3% by weight.
The "by weight" part comes into play when materials of differing densities are combined.
2006-06-29 07:41:26 · answer #1 · answered by Anonymous · 3⤊ 1⤋
It means you add substance A in a proportion of 3% of the weight of substance B
If substance B weighed 100 pounds then you would add 3 lbs. of substance A. 200lbs of B add 6 pounds of A and so on.
2006-06-29 07:39:26 · answer #2 · answered by Paul G 5 · 0⤊ 0⤋
"3% of A by weight" means that, if you have 100 grams of mixture, 3% of that, or three grams, is substance A. If you have 1 kg of mix, 3%, or 30 grams, is Substance A. Etc.
2006-06-29 07:37:54 · answer #3 · answered by Dave_Stark 7 · 0⤊ 0⤋
Your really should be careful with Substance A. The DEA might come after you. If you weight it down to 3%, the people you distribute it to may come after you also.
2006-06-29 07:39:40 · answer #4 · answered by Anonymous · 0⤊ 0⤋
3% by weight
as opposed to
3% by volume
two different ways of defining the composition of a mixture.
2006-06-29 07:39:19 · answer #5 · answered by jimvalentinojr 6 · 0⤊ 0⤋
It means when you have to add x ml of A's soln it should be x% of the total weight.
2006-06-29 07:37:36 · answer #6 · answered by ag_iitkgp 7 · 0⤊ 0⤋