Question

How many moles of H2O are needed to react with a mole of 3.0 of Na?​

Answer 1

Answer: 3.0 moles of water
`(H_2O)` are needed to react with a mole of 3.0 of Na

Step-by-step explanation:

The balanced chemical reaction of sodium with water is as follows:

`2Na+2H_2O\rightarrow 2NaOH+H_2`

According to stoichiometry:

2 moles of sodium
`(Na)` reacts with = 2 moles of water
`(H_2O)`

Thus 3.0 moles of sodium
`(Na)` reacts with =
`(2)/(2)* 3.0=3.0` moles of water
`(H_2O)`

3.0 moles of water
`(H_2O)` are needed to react with a mole of 3.0 of Na