The molecular weight of water is <span>18.01528 g/mol.
So in 2.92 grams there are 2.92/</span>18.01528 = 0.1621 mol of particles.
1 mol contains 6,02214 × 10^<span>23 particles by definition.
So the nr of H2O molecules is </span>0.1621 * 6,02214 × 10^23 = 0,9761 × 10^23.
Every molecule has 2 H atoms, so you have to double that.
2* 0,9761 × 10^23 = 1.952 × 10^23.
It takes more energy to breakdown the bonds
Answer:
1. 749.6
2. 159.8
3. 60.4
4. 19,840,275
5. 8.029118938015202
6. 267.984
7. 1,017.169517
8. 45,945
9. 28,710
10. 14.42169022209403
11. 0.1341
and that is all that I am going to give you for the last few try to use a calculator
Explanation:
use a calculator
