1 cup of chopped onions weighs approximately 150 grams.
So, 1/2 cup would weigh 75 grams.
This also applies to green peppers and other similarly structured veggies.
I just weighed one cup of chopped onion: 4 ounces.
a cup of minced onions would weigh 50grams.
250 grams is the weight in grams. It's about a cup.
The weight of 1 cup of cooked rice will vary depending on the particular type of rice. On average, one cup of cooked rice would weigh about 170 grams.
130 grams is roughly 4.6 oz by weight. Since a cup of flour typically weighs between 4 and 5 ounces (depending on your cup-filling technique) you could just call 130 grams a cup.
The weight of rice can depend on the specific type of rice grain. For example, a cup of uncooked long-grain white rice can weigh about 150 grams, and a cup of raw long-grain brown rice can weigh 165 grams.
About 250 grams.
250 grams is the weight in grams. It's about a cup.
Onions have about .1 grams of fat per cup, not much.
250 grams in one cup.
About 240 grams.
Average onions are about 100 grams each, so you can expect a 2 pound bag (1 kilo) to contain about 10 onions. Note that this varies with the type of onion (red and white onions are slightly larger a piece) and whether you buy organic onions which tend to be slightly smaller.
About 120 grams of dried onion.
You've answered your own question; a cup of 271 grams weighs 271 grams - grams is a measurement of weight.
90 grams of coffee powder or 90 grams of sugar? A cup can hold a volume in liters and cannot measure a weight.
1 teaspoon onion powder = 1 tablespoon dried onion flakes (minced onions) according to http://www.foodsubs.com/Onionsdry.html. So, 4 tablespoons of minced onion would be 4 teaspoons of onion powder
125 grams of flour is 1 cup.
A cup is a measure of volume and a gram is a measure of mass. I found that a cup of almonds is about 108 grams in weight, So does a Walnut weigh more than an Almond? They probably weight exactly the same.
Those are two different units of measure. A 'cup' measures volume and grams measure weight.