Final answer:
The number of moles of H3O+ that rained into the pond is approximately 3.55 moles.
Step-by-step explanation:
To calculate the number of moles of H3O+ in the acid rain, we need to multiply the concentration of H3O+ ions by the volume of the rain. The concentration of H3O+ ions can be determined using the pH scale. A pH of 4.8 indicates a concentration of 10^(-4.8) moles per liter.
Given:
- Volume of acid rain: 5.35 × 10^5 L
- pH of acid rain: 4.8
To calculate the moles of H3O+ ions, we can use the formula:
Moles of H3O+ = Concentration of H3O+ ions × Volume of acid rain
Concentration of H3O+ ions = 10^(-pH)
Substituting the given values:
Concentration of H3O+ ions = 10^(-4.8) moles/L
Moles of H3O+ = (10^(-4.8) moles/L) × (5.35 × 10^5 L)
Simplifying the expression:
Moles of H3O+ = 10^(-4.8 + 5.35) moles
Moles of H3O+ = 10^(0.55) moles
Moles of H3O+ = 3.55 moles