The pH of an acidic solution is 5.59. What is [H+]?
1 answer:
Answer:
[H⁺] = 2.57x10⁻⁶ M
Explanation:
This problem can be solved using the definition of pH:
pH = -log[H⁺]
Now we <u>isolate [H⁺] in the equation</u>:
-pH = log[H⁺]
=[H⁺]
As we are given the pH by the problem, we can now proceed to calculate the [H⁺]:
[H⁺] =
[H⁺] = 2.57x10⁻⁶ M
Thus, when the pH of a solution is 5,59; the molar concentration of H⁺ species is 2.57x10⁻⁶.
You might be interested in
<u>Answer:</u> The percent yield of the reaction is 8.10 %.
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
.....(1)
Given mass of salicylic acid = 0.105g
Molar mass of salicylic acid = 138.12 g/mol
Putting values in equation 1, we get:
The chemical equation for the formation of aspirin from salicylic acid follows:
By Stoichiometry of the reaction:
1 mole of salicylic acid produces 1 mole of aspirin
So, 0.0076 moles of salicylic acid will produce = of aspirin
Now, calculating the mass of aspirin from equation 1, we get:
Molar mass of aspirin = 180.16 g/mol
Moles of aspirin = 0.0076 moles
Putting values in equation 1, we get:
To calculate the percentage yield of aspirin, we use the equation:
Experimental yield of aspirin = 0.111 g
Theoretical yield of aspirin = 1.37 g
Putting values in above equation, we get:
Hence, the percent yield of the reaction is 8.10 %.