calculate the H+ for green tea with a pH of 7.9

pH=-log[H^+]

10^-(pH)=[H^+]

Answer contains ONLY 1 significant figure.

To calculate the H+ concentration for green tea with a pH of 7.9, you can use the equation:

pH = -log[H+]

Rearranging the equation, we have:

[H+] = 10^(-pH)

Let's substitute the given pH value of 7.9 into the equation:

[H+] = 10^(-7.9)

Now, we can calculate the H+ concentration:

[H+] = 1.26 x 10^(-8) M

Therefore, the H+ concentration for green tea with a pH of 7.9 is approximately 1.26 x 10^(-8) M.

To calculate the H+ (hydrogen ion) concentration from a given pH value, you can use the equation:

[H+] = 10^(-pH)

In this case, the pH of green tea is given as 7.9. Plugging this value into the equation, we get:

[H+] = 10^(-7.9)

To evaluate this calculation, we need to apply the exponent rule. If we take the negative value of the exponent (-7.9) and interpret it as a positive exponent, it becomes:

[H+] = 1 / 10^7.9

Now you can use a scientific calculator or computer calculator to calculate the value:

[H+] ≈ 1.258925412×10^(-8)

Therefore, the H+ concentration in green tea, with a pH of 7.9, is approximately 1.26 x 10^(-8) M (moles per liter).

Note: The H+ concentration represents the acidity of a solution. A lower concentration signifies a more acidic solution, while a higher concentration represents a more basic (alkaline) solution.