The definition of mass percent follows:Mass percent 100% 100%For example, suppose a solution is prepared by dissolving 1.0 g of sodiumchloride in 48 g of water. The solution has a mass of 49 g (48 g of H 2 O plus1.0 g of NaCl), and there is 1.0 g of solute (NaCl) present.
Rule of thumb calculation for steak calories per serve is roughly 170 calories per 100 grams. Calories in steak is based on a 3.5 ounce serving or 100 grams. Calories are approximate and can alter with fat marbling of the meat. Frying in fat will add lots of calories. You should grill meat and trim fat from the cut.
Flank Cuts. Flank steak is a relatively lean cut of beef. For less than 165 calories, you can have a 3-ounce broiled flank steak. The biggest percentage of those calories, or 60 percent of calories, are from protein. This serving of flank steak has close to 100 calories from protein.