Question

___________g of water makes l mole of water. (1) 32 (2) 33 (3) 16 (4) 18. ​

Answer 1

Answer: One mole of water (H20) weighs 18.0152 grams.

Explanation:

Since we know that a mole is a unit used to measure the quantity of anything.

Now water (H20) is made of 2 atoms of Hydrogen and 1 atom of Oxygen.

Therefore 1 mole of H20 would equal the sum of 2 moles of Hydrogen and 1 mole of Oxygen.

• weight of water = 2(1.0079) g + 15.9994 g
• weight of water = 2.0158 g + 15.9994 g
• weight of water = 18.0152 g

We can also round off this figure to 18g.