Predict what will be observed in each experiment below. predicted observation (c
ID: 577580 • Letter: P
Question
Predict what will be observed in each experiment below. predicted observation (choose one A student sees tiny bubbles clinging to the inside of an unopened plastic bottle full of carbonated soft drink. The student squeezes the bottle. The bubbles will shrink, and some may vanish. The bubbles will grow, and more may appear. O The bubbles won't change. I need more information to predict what will happen to the bubbles. Rock candy is formed when excess sugar is dissolved in hot water followed by crystallization. A to make two batches of rock candy. He finds an unopened box of "cane sugar" in the pantry. He starts preparing batch A by dissolving sugar in 500 mL of hot water (70 °C). He keeps adding sugar until no more sugar dissolves in the hot water. He cools the solution to room temperature. He prepares batch B by dissolving sugar in 500 mL of water at room temperature until no more sugar liely to form rock candy is dissolved. He lets the solution sit at room temperature. student wants to I s likely that more rock candy will be formed in batch A. O It is likely that no rock candy will be formed in either batch I need more information to predict which batch is moreExplanation / Answer
Ans : a) The bubbles will shrink , some may vanish.
SInce the bottle is unopened , squeezing the bottle will increase the pressure on the carbonated liquid inside. So it is most likely that the bubbles will shrink and also displace from its place as the liquid takes over. Some of them also may vanish.
b) It is likely that more rock candy is formed in batch A
SInce the solution is warmer at 70 degrees C in batch A , it will dissolve more amount of sugar in the same amount of water as compared to the batch B in which the dissolution is occuring at room temperature.
So now when the solution is allowed to cool , more amount of sugar in the form of rock candy will be crystallised from batch A.