Several substances are labeled on the pH scale below. A p H scale is shown ranging from 0 the top to 14 at the bottom. The approximate locations of substances are: gastric fluid, 1.2; lemon juice, 2.2; milk, 6.5; blood, 7.5; seawater, 8; milk of magnesia, upper M g (upper O upper H) subscript 2 solution, 10.5; household lye, upper N a upper O upper H solution, 13.5. Which substance has the lowest [H+] concentration but is still considered an acid? milk blood gastric fluid household lye

Typically, the lower a substance is on the pH scale, the higher its acidity is and the higher the H+ concentration is. Conversely, the higher a substance is on the pH scale, the more basic it is and the lower the H+ concentration is. To be considered an acid, a substance has to be below 7 on the pH scale, since 7 is neutral. The highest substance on the pH scale that is still below 7 is milk, with a pH of about 6.5. Therefore, this is the answer. Hope this helps!

mahima6824soni mahima6824soni · Answer 2 · 2022-07-29T09:53:45+02:00

The substance that has the lowest concentration of [H+] and is still considered acid is milk. Its pH is 6.9 nearest to the neutral which is 7. The correct option is A

What is a pH scale?

The pH scale is used in the measurement of the acidity and basicity of any liquid. The solution that is acidic has lower pH than 7 and the concentration of H+ ions will be higher. Those that have higher pH than 7 are called the base and will have a lower concentration of H+ ions.

The milk has a pH of 6.9, nearest to the neutral pH of 7, so it will have the lowest concentration of H+ ions out of the given compound, the higher the pH the concentration of H+ ions will increase.

Thus, the correct option is A, milk.

Learn more about the pH scale, here:

https://brainly.com/question/10825137

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