I understand that when pKa is higher than pH, deprotonation occurs. Which makes choice a) the correct answer... I just feel like I'm missing something. I guess I'm not sure how adding the acid relates back to creating a buffer. I think I understand but want to be sure. We have a...
Every chemical has a unique pKa value (or set of pKa values if it can donate more than one proton). It’s important to remember that acidity is relative. If you take a weak acid such as acetic acid and mix it with water, acetic acid will donate a proton. If you mix in add a ...
If the pKa of an acid is -4, what is the Ka? What is the pK_a of a compound used to make a buffer of pH 10.65 using 3 times as much conjugate base than the weak acid? What does the pK_a really tell you about the stren...
What is the pKa of hexa-1,3-dien-1-ol and 1-hexanol? The pka value of acetic acid is 4.7 and trichloroacetic acid is 0.7. Which is the stronger acid and what are the corresponding dissociation constants? If a drug has a pK_a of 6.7, at what pH will 55% of the drug be in its...
如果不具备身高1.74米左右的条件，就不可能是本案的作案人；如果不是左撇子，也不可能是本案的作案人；事实上，高某和王某或者不具备身高1.74米左右的条件，或者不是左撇子；可见，高某和王某都不是本案的作案人。上述推理属于（ ）。
people are not limited to Sri Lanka. Even in a country like Australia where I now live, there are intermittent corruption, crime, gender abuse, killing, and misguided politics. However, the difference is extremely vast. Sri Lanka’s wrongs are perhaps 50 times higher than a country like ...
b) If you added Thymol blue to a solution of pH 5 what color woul A certain indicator HIn has a pKa of 3.00 and a color change becomes visible when 7.00% of the indicator has been converted to In-. At what pH is this color change vis...
Firstly, the pH levels in animal intestines (approximately pH ≥ 6) are typically higher than the pKa of MHA, meaning that MHA would be present essentially in its anionic form and would therefore require transporters (rather than diffusion) for uptake. Secondly, the transport of MHA via ...
When the concentration of the reactants is higher than the equilibrium concentration, what happens? What happens when hydrogen ions is added to acetic acid and acetate compared to when hydroxide ions are added ? What is formed when CO2 is released into the soil?
Question: What is the pH of an aqueous solution with the hydronium ion concentration {eq}\left [H_3O \right ]^+ = 3 \times 10^{-5}\; M {/eq}? pH: The potential or power of hydrogen ions is the abbreviated form of pH. The pH scale represents t...