The answer is 1.83 moles of Na.
The calories per gram of each substance are:
Protein: 4 calories / gram
Carbohydrates: 4 calories / gram
Fat: 9 calories / gram
So, one bar contains:
50 * 4 + 10 * 9 + 40 * 4
450 calories
If she were to eat only these bars, she will need:
2,700 / 450
= 6 nutrition bars for her climb
I don't think it would dissolve , or at least not all of it bcuz that would be a lot of salt for a small amount of water
