Question

3g of hydrogen reacts with 30 g of oxygen to yield h2o.
a) which is the limiting reactant?​

Answer 1

Answer:

nitrogen

Step-by-step explanation:

because the hydrogen reacts to 30 g of oxygen yield h 2o answer is nitrogen

Answer 2

Given data: 3g of hydrogen reacts with 30 g of oxygen to yield H₂O.

To Find: The limiting reactant.

Solution:

The general equation of water is,

2H₂+O₂ → 2H₂O

Since, the mass of hydrogen atom = 1 amu, oxygen atom = 16amu

Therefore, mass of 2H₂ molecule = 4×1= 4g

Mass of O₂ molecule = 2× 16 =32g

4g of hydrogen has 32g of oxygen

To find the oxygen for 3g of hydrogen, (3×32)/4 = 24g of oxygen.

Hence, 3g of hydrogen need only 24g of oxygen, the given amount of oxygen (30g) is higher than the required amount.

Therefore, hydrogen is the limiting reactant.