Question

How many moles of oxygen is required to form 4 moles of water when reacted with 4 moles of hydrogen?
A) I mole
B) 2 moles
C) 3 moles
D) 4 moles​
ANSWER THIS PERFECTLY AND EARN TEN POINTS

Answer 1

Answer:-

2 moles of Oxygen are required. [Option.B]

Explanation:-

The balanced chemical equation for the reaction is :-

2H₂ + O₂ → 2H₂O

According to the equation :-

2 moles of Hydrogen [H₂] combine with 1 mole of Oxygen [O₂] to form 2 moles of water [H₂O] .

Thus, 4 moles of Hydrogen will combine with :-

= 4 × 1/2

= 2 moles of Oxygen.

Some Extra Information:-

Calculations based on the quantatitve relationship between the reactants and products are referred to as stoichiometry. It is therefore, that area of chemistry and chemical technology on which determination of quantities of reactants and products of chemical reaction is based.

Answer 2

Answer:

Required Answer :-

Before going to the question first let's see the basic

At first we need to find the chemical reaction

4 moles of water :-

$\bf \: 2 H_{2}$

Then comes oxygen

$\bf O_2$

The reaction will be :-

$\bf \red{2H_2 + O_2 = 2H_2O}$

Now

When 4 moles of oxygen combined

Oxygen moles = 4

Hydrogen moles = 2

Mole Required = 4/2

$\therefore$ 2 moles are required.