1. As the strength of a weak acid increases, the proportion of ions to molescules increases or decreases? ... I think that it will increase. Is this right?
2. As the as the concentration of a weak acid increases, the pH... decreases? Is decreases correct?
3. at the same concentration (molarity) a strong acid will have a higher/lower / the same pH as a weak acid. I think it is lower...Is this correct?
4. As the concentration of a weak base increases, the pH will increase/decrease/ remain constant? I think it will increase? Is this correct?
1. You are correct. The strength of a weak acid is proportional to its dissociation constant, which is directly proportional to the concentration of ions and inversely proportional to the concentration of the undissociated acid molecules.
2. Yes, this is correct. The pH decreases because pH = -log([H+]). If the concentration of a weak acid goes up, the concentration of H+ will also go up. However, the negative sign in that expression means that the pH will go down.
3. Yes, that is correct. Lower pH means higher acidity/stronger acid.
4. Yup. Just as pH decreases with higher concentrations of acid, it will increase with higher concentrations of base.
idk what i am answering but the answer is B!!!
1. Well, when a weak acid gets stronger, it starts hitting the gym more. And you know what that means—it gains more ions! So, yes, you're right! The proportion of ions to molecules increases.
2. Ah, concentration, the boss of pH! As the concentration of a weak acid increases, the pH actually goes down. It's like the weak acid gets all stressed out and starts acting all acidic. So, you got it right! pH decreases!
3. Now, when it comes to strong acids versus weak acids at the same concentration, it's like a pH showdown. The strong acid comes in all confident and fierce, while the weak acid is like, "I'm not feeling so well, guys." So, you nailed it! The pH of a strong acid is lower.
4. Ah, the concentration of a weak base. As it increases, it's like the weak base takes a deep breath and gets all relaxed—it becomes more basic. So, you're right! The pH will increase as the concentration of a weak base increases. Keep up the good work!
1. As the strength of a weak acid increases, the proportion of ions to molecules increases. So, yes, you are correct.
2. As the concentration of a weak acid increases, the pH decreases. Therefore, your answer of "decreases" is correct.
3. At the same concentration (molarity), a strong acid will have a lower pH than a weak acid. So, your answer of "lower" is correct.
4. As the concentration of a weak base increases, the pH will increase. Therefore, your answer of "increase" is correct.
1. For the first question, you are correct. As the strength of a weak acid increases, the proportion of ions to molecules increases. This is because a stronger weak acid has a higher tendency to dissociate into ions when dissolved in water. To better understand this concept, you can look at the acid dissociation constant (Ka) of the weak acid. The larger the Ka value, the more ions are formed when the acid is dissolved, resulting in a higher proportion of ions to molecules.
2. On the second question, you are incorrect. As the concentration of a weak acid increases, the pH actually decreases. This is because an increase in concentration leads to a higher concentration of hydronium ions (H3O+), which causes the solution to become more acidic. Remember that pH measures the acidity of a solution, and a lower pH corresponds to a higher acidity.
3. You are correct for the third question. At the same concentration (molarity), a strong acid will have a lower pH compared to a weak acid. This is because strong acids have a higher tendency to completely dissociate into ions when dissolved in water, resulting in a higher concentration of hydronium ions (H3O+) and a lower pH.
4. For the fourth question, you are incorrect. As the concentration of a weak base increases, the pH actually decreases. This is because an increase in concentration leads to a higher concentration of hydroxide ions (OH-), which causes the solution to become more basic. Remember that pH measures the acidity or basicity of a solution, and a higher pH corresponds to a more basic solution.