Question

In the reaction 2H2(g)+02(g)=2H2O(g) what’s the elements in terms of numbers of molecules,moles,and volume of gases at STP

Answer 1

In this question, we have the following reaction:

2 H2 + O2 -> 2 H2O

At STP (standard temperature and pressure), 1 mol of gas is equal to 22.4 Liters of volume, and also equal to 6.022*10^23 molecules or particles, and this is the Avogadro's constant number. For our question, we have 2 moles of H2, 1 mol of O2 and 2 moles of H2O, according to this, we will have:

1.204*10^24 molecules of H2

2 moles of H2

44.8 L of H2

6.022*23 molecules of O2

1 mol of O2

22.4 L of O2

1.204*10^24 molecules of H2O

2 moles of H2O

44.8 L of H2O