the equation for the ph of a substance is ph = -logh+, where h+ is the concentration of hydrogen ions. what…

the equation for the ph of a substance is ph = -logh+, where h+ is the concentration of hydrogen ions. what is the approximate ph of a solution if the concentration of hydrogen ions is 5.0×10^(-4) moles per liter?\n2.7\n3.0\n3.3\n3.6\ndone

the equation for the ph of a substance is ph = -logh+, where h+ is the concentration of hydrogen ions. what is the approximate ph of a solution if the concentration of hydrogen ions is 5.0×10^(-4) moles per liter?\n2.7\n3.0\n3.3\n3.6\ndone

Answer

Answer:

C. 3.3

Explanation:

Step1: Substitute the value of [H+]

Given [H+] = 5.0×10⁻⁴, and pH = -log[H+]. So pH = -log(5.0×10⁻⁴).

Step2: Use logarithm property

We know that log(ab)=log(a)+log(b). So log(5.0×10⁻⁴)=log(5.0)+log(10⁻⁴). Since log(10⁻⁴)= - 4 and log(5.0)≈0.7. Then log(5.0×10⁻⁴)≈0.7 - 4=-3.3.

Step3: Calculate pH

pH = -log(5.0×10⁻⁴), so pH≈ -(-3.3)=3.3.