percent by mass = (mass of solute) / (mass of solute + mass of solvent) x 100% Ex: if you need a 12% by mass solution of salt then the easiest way is to get 12 g salt and 88 g of water thus the total is 100 g. 12 / (12+88) x 100% = 12%
Dissolve 15 g salt in 100 mL water.
0,8 g is 800 mg.
The answer is 71,3 g, for sodium chloride.
350 mg = 0,350 g
As an average ocean water has 35 g NaCl/100 g water.
Approximately 12 gm
As an average the concentration is 35 g/L.
To find how much salt can be obtained, we need to calculate the mass of NaCl in 274 g of seawater. Since the concentration of NaCl in seawater is 3.5 g per 100 g of water, the mass of NaCl in 274 g of seawater is 9.59 g. Therefore, 9.59 g of salt can be obtained from 274 g of seawater.
approx. 6,5 g NaCl/100 g noodles.
Eating too much salt is supposed to increase the blood pressure.
The recommended daily intake is 2,5-5 g NaCl.