All categories

4 years ago

Predict what will observe in below mention experiment.

1 answer:

6 0

Predict what will be observed in each experiment below. Rock candy is formed when excess sugar is dissolved in hot water followed by crystallization. A student wants 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 degree 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 is dissolved. He lets the solution sit at room temperature

a. It is likely that more rock candy will be formed in batch A.

b. It is likely that less rock candy will be formed in batch A.

c. It is likely that no rock candy will be formed in either batch.

d. I need more information to predict which batch is more likely to form rock candy.

Answer: Option A

Explanation:

More rock candy will be formed in the batch A because it is dissolved in hot water and less rock candy will be formed in batch B because the water is not hot.

Formation of the candies require hot water as the solubility of sugar is more in hot water as compared to normal water.

The sugar will be dissolved in water until the time all the space is filled sugar molecules.

Hence, the correct answer is Option A.

You might be interested in

How to do moles in chemistry

zalisa [80]

1.) Write down the number of atoms that comprise each compound on either side of the equation. Using the chemical equation you can identify the atoms of each element in the reaction. Because a chemical reaction can never create or destroy new matter, a given equation is unbalanced if the number (and types) of atoms on each side of the equation don't perfectly match.Don’t forget to multiply through by a coefficient or subscript if one is present.

For example, H2SO4 + Fe ---> Fe2(SO4)3 + H2On the reactant (left) side of the equation there are 2 H, 1 S, 4 O, and 1 Fe.On the product (right) side of the equation there are 2H, 3 S, 12 O, and 2 Fe.

3 0

3 years ago

Help me answer this question pls

Nostrana [21]

The answer should be D all of the above

3 0

3 years ago

Read 2 more answers

Number of Calcium on Periodic table

Sliva [168]

Answer:

number of Calcium on the periodic table is 20

6 0

3 years ago

The ph of a 0. 102 m solution of a weak acid (ha) is 1. 15 ka for the weak acid is?

Advocard [28]

The pH of the weak acid is 6.93.

Given,

K= 1.15 * $10^{-6}$

c=0.102

[H]= K*c= 1.15 * $10^{-6}$ * 0.102= 0.1173 * $10^{-6}$

p[H]= -log[H]= 6.93

A weak acid is one that partially separates into its ions in water or an aqueous solution. A strong acid, on the other hand, completely splits into its ions in water. The conjugate base of a weak acid is also a weak base, and vice versa for the conjugate acid of a weak base. Weak acids have a higher pH than strong acids at the same concentration. Simple arrows pointing left to right are used to represent the reaction of a strong acid ionising in water. On the other hand, a weak acid ionising in water has a double arrow reaction arrow, indicating that both the forward and reverse reactions take place at equilibrium.

Learn more about Weak acid here:

brainly.com/question/22104949

#SPJ4

6 0

1 year ago

How to separate unreacted iron

taurus [48]

Answer:

through magnetization

6 0

3 years ago