Question

What is the no. of molecules in 9.0 g of steam

Answer 1

Answer:

steam is water (H2O) the relative molecule mass of water has to be calculated

Explanation:

2*1g=2g

mass of oxygen =16g

mass of water equals=18g

to find the number of moles of water 9g divided mass 9g mass of water = 18g u get 0.5 moles