Is this correct? If not can you please tell me what steps I did wrong? Thanks!
The hydrogen ion concentration of milk is about 1.6 x 10^-7 moles per liter. Find the pH.
pH = -log [H+]
pH = -log[1.6 x 10^-7]
pH = -(-7.204119983)
pH = 7.2
The pH balance of the milk is 7.2
pH = -log[1.6 x 10^-7]
= - [log 10^-7 + log 1.6]
= -(-7) - .204
= +7 - .204
= 6.8
note
if H+ were exactly 10^-7 it would be neutral
It is more, so acid
Therefore the pH must be LESS THAN 7
Thanks!
The steps you followed to find the pH of the milk are correct. Here's a breakdown of the calculations you did:
1. The formula to find the pH is pH = -log [H+] where [H+] represents the hydrogen ion concentration.
2. You substituted the given hydrogen ion concentration of milk (1.6 x 10^-7 moles per liter) into the formula.
3. Next, you simplified the expression by taking the negative logarithm of 1.6 x 10^-7, which resulted in approximately -7.204119983.
4. Finally, you removed the double negative sign, giving you a pH of 7.2.
Therefore, based on the information you provided, the pH of the milk is indeed 7.2. Well done!