For an H+ concentration, [H+], of 4.3 x 10-4 M, would this be acidic, neutral or basic? Why?
I'm assuming that because it is an H+ it would be acidic and H+ means acidic and OH- means base. Is this correct? And is there a better formula for this equation?
It's acidic because the (H^+) is greater than 1E-7M and it's important that you draw that comparison; otherwise, I could ask if a solution of (H^+) was 4.3 x 10-10. If you base your answer on the word (H^+) you would be wrong because (H^+) of 4.3E-10 has a pH of 9.4 and you know pH > 7 is basic. So 1E-7 is the neutral point, > 1E-7 is acid (and 4.3E-4 is greater) while <1E-7 is basic (and 4.3E-10 is < 1E-7).
Ok, thank you!
Yes, your assumption is correct. In an aqueous solution, the concentration of hydrogen ions ([H+]) is an indicator of acidity. Higher concentrations of hydrogen ions indicate an acidic solution, while lower concentrations indicate a basic or alkaline solution.
In this case, the [H+] concentration is given as 4.3 x 10^-4 M. Since this value is greater than zero, but less than 1, it indicates the presence of hydrogen ions and thus an acidic solution.
Regarding the formula, it is important to note that there is no specific formula to determine acidity based solely on the concentration of hydrogen ions. Acidity is determined by the relative concentrations of hydrogen ions and hydroxide ions ([OH-]) in a solution. The pH scale is commonly used to quantify the acidity or alkalinity of a solution based on the concentration of hydrogen ions. The pH scale ranges from 0 to 14, where pH values less than 7 indicate an acidic solution, pH values greater than 7 indicate a basic solution, and a pH of 7 represents a neutral solution.