Table of Contents
Is HCl or HBr more acidic?
HCl, HBr, and HI are all strong acids, whereas HF is a weak acid. The acid strength increases as the experimental pKa values decrease in the following order: HF (pKa = 3.1) < HCl (pKa = -6.0) < HBr (pKa = -9.0) < HI (pKa = -9.5). It is a member of the binary acids.
Does HCl or HBr have a stronger bond?
Lavelle said that HBr is the stronger acid, but the bond between HBr is longer than the bond between HCl. Longer bonds are weaker bonds.
Does HBr increase pH?
We now know that HBrO is a weak acid, so it must dissociate less than HBr , meaning that it decreases the pH by less from about 7 .
Why is HBr a stronger acid than HCl?
In binary acids such as HBr and HCl, the H–Br bond is longer than the H–Cl bond as Br is larger than Cl. The H–Br bond is therefore weaker than the H–Cl bond and HBr is thus a stronger acid than HCl.
Why is HCl stronger bond than HBr?
Most people say that it is because the 3p orbital of chlorine when overlapping with the s orbital of hydrogen covers more area than when 4p orbital of bromine overlaps with the s orbital of hydrogen which makes bond between H and Cl more stronger than the bond between H and Br.
Which has a higher pH HF or HBr?
HBr, HF HBr is the stronger acid because Br is larger than F. Thus, the H-BR bond is weaker than the H-F bond and Dr- is more stable than F-.
What is the pH of the solution with the formula HCl?
HCl solutions are strong acids, so we can already expect a pH less than 7. Using the 0.200 M HCl as the [H+] (concentration of hydrogen ions) the solution is as follows: A 0.70 pH indicates a very acidic solution. Example 2: Calculate the pH of a 0.100 M nitric acid solution. Nitric acid has a chemical formula of HNO 3.
What is the initial concentration of HCl after dissociation?
According to this calculation, the initial concentration of HCl is 1 x 10 -3 M. If we assume that this acid dissociates completely, the
What is the relationship between pH and H+?
The pH to H + formula that represents this relation is: The solution is acidic if its pH is less than 7. If the pH is higher than that number, the solution is basic, as known as alkaline. Solutions with a pH equal to 7 are neutral. Apart from the mathematical way of determining pH, you can also use pH indicators.
What is the pH of a very acidic solution?
A 0.70 pH indicates a very acidic solution. Example 2: Calculate the pH of a 0.100 M nitric acid solution. Nitric acid has a chemical formula of HNO 3. HNO 3 is another strong acid, so the pH of this solution will also be less than 7. Using the 0.100 M nitric acid as the [H +] (concentration of hydrogen ions) the solution is as follows: