assuming that the following reaction between oxygen and hydr

assuming that the following reaction between oxygen and hydrogen goes to completion, which statement is true if 10.0 grams of hydrogen are mixed with 64.0 grams of oxygen?

2H2+O2-------> 2 H2O

A. the limiting reagent is oxygen.

B. 74.0 grams of water will form.

C. 3.0 moles of hydrogen will be left left over following the reactiom.

D.68.0 grams of water will form.

Solution

In the above equation hydrogen, oxygen and water are in the ratio of 2:1:2. i.e., 2 moles of hydrogen, & 1 mole of oxygen combine to give 2 moles of water.

2moles of hydrogen =4gm of hydrogen

1mole of oxygen = 32gm of oxygen

Here 4moles of hydrogen =8gm and 2moles of oxygen = 64gm. are avilable giving rise to 72gm of water with 1mole of hydrogen left over.