Question

How Much Water Will Be Formed When An Electric Spark is sent to a mixture of 5gm of Hydrogen and 50gm of oxygen? How Much Oxygen Will Be Left Unreacted.​

Answer 1

Explanation:

6gm of o2 is left unreacted

Answer 2

•To form water we need only one Oxygen and two hydrogen atoms.As according to the question we have 5gm of Hydrogen and 50gm of oxygen

so 5 gram of hydrogen = 5/1 = 5 mole of hydrogen

50 gram of oxygen= 50/16 = 2.5 mol of oxygen

as we have only 5 moles of hydrogen

so we need 2.5 moles of oxygen to prepare water.

show the weight of the water is 2.5mol × 18 gm/mol = 45 gm water

•Oxygen be left (50 – 2.5)gm = 47.5 gm