Question

How many moles of O are in 2.45 moles of H2CO3?​

Answer 1

To calculate the moles of oxygen in 2.45 moles of H2CO3, you multiply the number of moles of H2CO3 by 3 (since there are 3 moles of oxygen in every mole of H2CO3), yielding 7.35 moles of O.

Step-by-step explanation:

The student has asked how many moles of oxygen (O) there are in 2.45 moles of carbonic acid (H2CO3). First, we should recognize the molecular formula of carbonic acid which includes two hydrogen atoms (H2), one carbon atom (C), and three oxygen atoms (O3). As a result, each mole of H2CO3 has 3 moles of oxygen.

To find the total number of moles of oxygen in 2.45 moles of H2CO3, we multiply the number of moles of H2CO3 by the number of moles of oxygen per mole of H2CO3:

2.45 moles H2CO3 × 3 moles O / 1 mole H2CO3 = 7.35 moles O

Therefore, there are 7.35 moles of oxygen in 2.45 moles of carbonic acid.

Answer 2

7.35 moles of oxygen

Step-by-step explanation:

First of all, for 1 mole of H₂CO₃ we have 3 moles of oxygen (can be deduced from the chemical formula of the acid), then the moles of oxygen in 2.45 mole of the compound, which are given in the question, from the carbonic acid will be:

If in 1 mole of H₂CO₃ we have 3 moles of oxygen

The in 2.45 moles of H₂CO₃ we have X moles of oxygen

X = ( 3 × 2.45 ) / 1 = 7.35 moles of oxygen