The initial pH for the weak acid-strong base curve is higher than the initial pH for the strong acid-strong base curve. Hence, option A is correct.
<h3>What is a weak acid?</h3>
Weak acids are acids that don't completely dissociate in solution.
A weak acid is an acetic acid. It has a of 1.8⋅
. Calculate how much it will dissociate in water. Since acetic acid is a weak acid so large part will not dissociate completely.
![k_a=\frac{[CH_3COO^-]H^+]}{[CH_3COOH]}](https://tex.z-dn.net/?f=k_a%3D%5Cfrac%7B%5BCH_3COO%5E-%5DH%5E%2B%5D%7D%7B%5BCH_3COOH%5D%7D)
B is not true, it shows the titration curve for weak/strong acid titrated with a strong base. When choosing an indicator for colourimetric titration select one so that the pH jump at the equivalence point contains the interval p±1. Phenolphthalein has a p≈9, so to decide if it is a suitable indicator check if the pH jumps from 8 to 10 at the equivalence point.
C is not true either because of the very slow reaction.
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Answer:
a,morunoxidice
Explanation:
carbon - tranite>plangose ,finite, finite,MARETE
Copper - Cu is the answer
I'm not positive what evaporations you need but I have these.....
1. Wind assists evaporation; for example in clothes dry faster under a fan.
2. Heat assists evaporation; for example, in summer clothes dry faster than in winter.
3. Increase in surface area exposed assists evaporation; for instance, a wet cloth spread out dries faster than when folded.
4. Dryness assists evaporation; for instance, clothes dry faster in summer than during the monsoon when the air is humid.
5. The rate of evaporation depends upon the nature of the liquid; for example, petrol evaporates faster than water.
6. Vapor pressure: if pressure is applied on the surface of a liquid, evaporation is hindered; consider, for example, the case of a pressure cooker.
During a collision, the person would most likely experience the same conditions with or without a seatbelt.
