Question

how many gram of water molecules obtain from 2g hydrogen and 2g oxygen​

Answer 1

Answer:

Explanation:

The molecular masses of hydrogen, oxygen and water are 2 g/mole, 32 g/mole and 18 g/mole respectively.

2H  

2

​  

+O  

2

​  

→2H  

2

​  

O

2×2=4 g of hydrogen reacts with  1×32=32 g of oxygen to form  2×18=36 g of water.

Hence,  

4

4

​  

=1 g of hydrogen reacts with    

4

32

​  

=8 g of oxygen to form    

4

36

​  

=9 g of water.

9 grams of water can be produced when 8 g of hydrogen reacts with 8 g oxygen.