b. The pH level of a solution describes its acidity. The pH of a substance is defined by the equation: pH = -log(h^+)
where H^+ is the hydrogen ion concentration in moles per liter.
If the pH of carbonated soda is 3, what is H^+
-log(H+) = 3
log(H+) = -3
[H+] = 10^-3
To find the hydrogen ion concentration (H^+) in moles per liter, you need to rearrange the equation:
pH = -log(H^+)
First, let's solve for -log(H^+):
-log(H^+) = pH
Now, substitute the given pH value of carbonated soda, which is 3:
-log(H^+) = 3
To isolate H^+, you can exponentiate both sides of the equation with base 10:
10^(-log(H^+)) = 10^3
Since the exponential function and the logarithmic function are inverse operations, the left side simplifies to H^+:
H^+ = 10^3
Calculating 10^3, we find:
H^+ = 1000
Therefore, the hydrogen ion concentration (H^+) in carbonated soda is 1000 moles per liter.