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What criterion is used in selecting an indicator for a particular acid-base titration?
The key criterion for selecting an indicator for an acid-base titration is that the indicator's color change should occur close to the equivalence point of the titration. This ensures that the indicator accurately signals when the reaction is complete. The pH range over which the indicator changes color should match the pH range around the equivalence point.
What are liquids with the pH level of 10?
They are medium-strong bases. Anything with a pH level over 7 is a base, 8 being a weak base and 12 being a strong base. Anything Below 7 is an acid, 6 being a weak acid and 0 being a strong acid.
What would you use to neutralize a strong base that is spilled on the floor?
You can neutralize a strong base spill on the floor by sprinkling an acidic compound like citric acid or vinegar over the spill. Allow it to react, then clean up the neutralized mixture with water and a mop. Remember to wear appropriate protective gear.
What happens when an acid and a base neutralize one another what is left over?
When an acid and a base neutralize each other, they form water and a salt. The salt formed will depend on the specific acid and base that reacted.
How could you make sure that there was no ammonia or nitric acid left over in the reaction?
To ensure no ammonia is left over in the reaction, you can evaporate it by applying mild heat in a fume hood. For nitric acid, neutralize it with a base such as sodium hydroxide or bicarbonate until pH becomes neutral. Then, test for the absence of ammonia and nitric acid using appropriate chemical tests.
What makes a base or an acid?
To determine whether a substance is an acid or a base, you look at it's pH. If it is over 7, it is a base. If it is below 7, it is an acid. If the pH is 7, the substance is neutral.
Why can a buffer only buffer against a small amounts of acid or base?
A strong acid and a strong base will react together to produce a neutral salt. E.g., HCl (strong acid) and NaOH (strong base) will react together to form H20 and NaCl (salt). The salt is neutral (if you dump table salt into water, the solution will be neutral) this is because the Na+ and Cl- are perfectly happy being charged atoms. If you have something that doesn't really like to be ionized, which is a weak acid or base (for example acetic acid, (vinegar) which is only 1.1% ionized (charged) in a water solution) will only be ionized if something forces it to be ionized, i.e., a strong acid or base. When there is a mixture of a weak acid and its conjugate salt (or weak base and its conjugate salt) a buffer is formed. This is due to the fact that if you add some strong acid it will simply react with the conjugate salt, and if you add some strong base it will react with the weak acid. This is how they "buffer solutions" by keeping things pretty balanced. So to answer your question, a buffer must contain something that is only weakly reactive, and can react further when the need is present. A strong acid/base will totally react, so there is nothing left over to do any buffering.
What is the pH score for a strong acid and a strong base?
A strong acid will have a low pH and a strong base will have a high pH.
What criterion is used in selecting an indicator for a particular acid-base titration?
The key criterion for selecting an indicator for an acid-base titration is that the indicator's color change should occur close to the equivalence point of the titration. This ensures that the indicator accurately signals when the reaction is complete. The pH range over which the indicator changes color should match the pH range around the equivalence point.
What does acid and base mean?
Acidic solutions have a pH under 7.A neutral solution has a pH of 7.Basic solutions have a pH over 7.
What are liquids with the pH level of 10?
They are medium-strong bases. Anything with a pH level over 7 is a base, 8 being a weak base and 12 being a strong base. Anything Below 7 is an acid, 6 being a weak acid and 0 being a strong acid.
How does an acid and base differ in meaning?
An acid solution has a pH under 7.A base solution has a pH over 7.
Is a solution with the pH of 11 an acid or base?
Anything over 7 is a base.
What would you use to neutralize a strong base that is spilled on the floor?
You can neutralize a strong base spill on the floor by sprinkling an acidic compound like citric acid or vinegar over the spill. Allow it to react, then clean up the neutralized mixture with water and a mop. Remember to wear appropriate protective gear.
What happens when an acid and a base neutralize one another what is left over?
When an acid and a base neutralize each other, they form water and a salt. The salt formed will depend on the specific acid and base that reacted.
How could you make sure that there was no ammonia or nitric acid left over in the reaction?
To ensure no ammonia is left over in the reaction, you can evaporate it by applying mild heat in a fume hood. For nitric acid, neutralize it with a base such as sodium hydroxide or bicarbonate until pH becomes neutral. Then, test for the absence of ammonia and nitric acid using appropriate chemical tests.
Does wash out dye work on black hair?
yes it does, but you have to wash it out with acid all over your body... STRONG ACID
