Depends on what is in the cup...
a cup of shelled pistachios can weigh anything because it depends how big the cup is
depends on the size of the cup
1 glucose molecule = approx. 0,3.10-21 g
2pounds.
8 oz
About 200 grams
approximately 4.16oz
The cup of water is slightly heavier.
One cup is 8 liquid oz's If want to know how much one cup of walnuts weigh you will have to weigh them
A Styrofoam cup weighs about 4.4 grams.
About 170 gm, or 6 ounces. To weigh 1 cup of corn kernels, get some scales and weigh the measuring cup. Then fill the measuring cup with corn kernels and weigh it again. Subtract the weight of the cup empty from the weight of the cup full and the answer you get will be the weight of one cup of corn kernel.