CompTIA
Checkpoint
ISC
HP
Dell
EC-Council
EXIN
Fortinet
ITIL®
Juniper
PMI
Microsoft
VMware
Avaya
Google
Salesforce
Amazon
Palo Alto Networks
Certiport
ISC2
All Vendors
  2. Home
  3. Exams
  4. Test Prep
  5. ACT Test

Free ACT Test Exam Braindumps (page: 135)

Page 135 of 260
PDF with 1039 Questions

A mixture that is made by dissolving one compound (solute) in another (solvent) is called a solution. The amount of solute that can be dissolved in a solvent at a given temperature is called solubility. For most substances, solubility increases with temperature. When the amount of solute dissolved in a solvent exceeds the solubility, the solution is called supersaturated. Rock candy can be made by dissolving as much sugar in water, as solubility would allow at a high temperature, and then slowly cooling the solution to room temperature. If a thin string is dipped into it and left in the solution, the sugar in excess of the solubility at room temperature will form sugar crystals around the string, making the sweet rock candy. The solubility (in grams of sugar per 100 grams of water) as a function of temperature (in degrees Celsius) is plotted in the graph below.



In order for 250 g of sugar to completely dissolve in 100 g of water, the temperature of the solution would have to be at a minimum of:

  1. 15 degrees Celsius.
  2. 25 degrees Celsius.
  3. 45 degrees Celsius.
  4. 65 degrees Celsius.

Answer(s): C

Explanation:

You could use the strategy described in problem 1. If you draw a line through the 250 mark, you will see that it crosses the solubility curve at about 45 degrees Celsius. Below that temperature (choices A and B), the sugar will not dissolve completely. At 65 degrees (choice D) the sugar will dissolve. Choice D is incorrect because 65 degrees is above the minimum temperature required to dissolve the sugar.



A mixture that is made by dissolving one compound (solute) in another (solvent) is called a solution. The amount of solute that can be dissolved in a solvent at a given temperature is called solubility. For most substances, solubility increases with temperature. When the amount of solute dissolved in a solvent exceeds the solubility, the solution is called supersaturated. Rock candy can be made by dissolving as much sugar in water, as solubility would allow at a high temperature, and then slowly cooling the solution to room temperature. If a thin string is dipped into it and left in the solution, the sugar in excess of the solubility at room temperature will form sugar crystals around the string, making the sweet rock candy. The solubility (in grams of sugar per 100 grams of water) as a function of temperature (in degrees Celsius) is plotted in the graph below.



At 100 degrees Celsius the solubility of sugar in water would most likely be:

  1. less than 250 g of sugar in 100 g of water.
  2. between 250 g of sugar and 350 g of sugar in 100 g of water.
  3. between 350 grams of sugar and 400 g of sugar in 100 g of water.
  4. more than 400 grams of sugar in 100 g of water.

Answer(s): D

Explanation:

This question is asking you to extrapolate, make a prediction, based on the given data. The solubility of sugar in water increases, as the temperature increases. You can assume that the trend will continue. So, you can rule out choices A and B. Draw a line through the 100-degree Celsius mark, and extend the solubility curve to that mark, following the trend, as illustrated in the figure below. This should help you rule out choice C, since it will require the shape of the curve to change.



A mixture that is made by dissolving one compound (solute) in another (solvent) is called a solution. The amount of solute that can be dissolved in a solvent at a given temperature is called solubility. For most substances, solubility increases with temperature. When the amount of solute dissolved in a solvent exceeds the solubility, the solution is called supersaturated. Rock candy can be made by dissolving as much sugar in water, as solubility would allow at a high temperature, and then slowly cooling the solution to room temperature. If a thin string is dipped into it and left in the solution, the sugar in excess of the solubility at room temperature will form sugar crystals around the string, making the sweet rock candy. The solubility (in grams of sugar per 100 grams of water) as a function of temperature (in degrees Celsius) is plotted in the graph below.



In order to produce rock candy at 20 degrees Celsius from a solution of 300 g of sugar not completely dissolved in 100 g of water, the solution must be:

  1. first heated above 60 degrees Celsius, then slowly cooled to 20 degrees Celsius.
  2. slowly stirred at 20 degrees Celsius.
  3. slowly cooled to 0 degrees Celsius.
  4. slowly cooled below 0 degrees Celsius, then heated to 20 degrees Celsius and stirred.

Answer(s): A

Explanation:

The question could be answered by going back to the passage. Rock candy is made by first completely dissolving the excess sugar, at a high temperature, then slowly cooling to room temperature Choices B, C, and D don't describe heating, followed by slow cooling.



A mixture that is made by dissolving one compound (solute) in another (solvent) is called a solution. The amount of solute that can be dissolved in a solvent at a given temperature is called solubility. For most substances, solubility increases with temperature. When the amount of solute dissolved in a solvent exceeds the solubility, the solution is called supersaturated. Rock candy can be made by dissolving as much sugar in water, as solubility would allow at a high temperature, and then slowly cooling the solution to room temperature. If a thin string is dipped into it and left in the solution, the sugar in excess of the solubility at room temperature will form sugar crystals around the string, making the sweet rock candy. The solubility (in grams of sugar per 100 grams of water) as a function of temperature (in degrees Celsius) is plotted in the graph below.



How much sugar must be added to a solution of 50 g of sugar in 100 g of water at 45 degrees Celsius in order for the solution to be supersaturated?

  1. more than 10 grams
  2. more than 20 grams
  3. more than 100 grams
  4. more than 200 grams

Answer(s): D

Explanation:

You can solve this problem by drawing a line through the 45-degree Celsius mark. It intersects the solubility curve at about 250 g of solute per 100 g of solvent. In order for a solution to be supersaturated, the amount of sugar has to exceed solubility. Therefore, a total of more than 250 g is necessary. If a solution already contains 50 g of sugar, more than 200 grams are required.



Page 135 of 260



Post your Comments and Discuss Test Prep ACT Test exam with other Community members:

Rakesh commented on October 08, 2024
Good dumps to practice.
UNITED STATES
upvote

ric commented on October 08, 2024
is it still vaild?
KOREA REPUBLIC OF
upvote

Bboy commented on October 08, 2024
So far so good
FRANCE
upvote

Bboy commented on October 08, 2024
nice questions
FRANCE
upvote

Gaurav commented on October 08, 2024
Good data thank you
Anonymous
upvote

Mike commented on October 08, 2024
Not bad at all
CANADA
upvote

max commented on October 08, 2024
great exam dumps
ROMANIA
upvote

Its truly to pass the exam. commented on October 08, 2024
Its truly to pass the exam.
ROMANIA
upvote

Rajat commented on October 08, 2024
very helpful
INDIA
upvote

Neha commented on October 08, 2024
Brainstorming required
UNITED STATES
upvote

jnr Ndlezane commented on October 08, 2024
elite stuff
Anonymous
upvote

Neha commented on October 08, 2024
It would be great if we have rationale/ explanation to all question
UNITED STATES
upvote

Neha A commented on October 08, 2024
Good Selection of questions
UNITED STATES
upvote

P B commented on October 08, 2024
Are these updated
Anonymous
upvote

Neha commented on October 08, 2024
Great Question
UNITED STATES
upvote

mm commented on October 08, 2024
good clarification on the answer
Anonymous
upvote

mo commented on October 08, 2024
a good practice thanks
Anonymous
upvote

Chalumuri Chandrasekhar commented on October 08, 2024
Preparation
INDIA
upvote

Anonymous commented on October 08, 2024
great source az-104 exam preparation
INDIA
upvote

Saket commented on October 07, 2024
Q 60) Will data cached in a warehouse be lost when the warehouse is resized? I think B is correct answer. Refer - https://docs.snowflake.com/en/user-guide/warehouses-considerations Decreasing the size of a running warehouse removes compute resources from the warehouse. When the computer resources are removed, the cache associated with those resources is dropped, which can impact performance in the same way that suspending the warehouse can impact performance after it is resumed.
Anonymous
upvote

Barbara commented on October 07, 2024
good content!
UNITED STATES
upvote

Adekunle commented on October 07, 2024
I really appreciate the owner of this site. I took my Exam today and I passed. Thanks alot
Anonymous
upvote

mogoi commented on October 07, 2024
simple question
Anonymous
upvote

iyanu commented on October 07, 2024
please how do we download the premium version
UNITED STATES
upvote

okiki commented on October 07, 2024
i cant download the premium version.. what to do please?
UNITED STATES
upvote

lky commented on October 07, 2024
thanks. very food!!
KOREA REPUBLIC OF
upvote

lky commented on October 07, 2024
thanks. this exam is helping to me.
KOREA REPUBLIC OF
upvote

Mano commented on October 07, 2024
Thank you very much for this study material. I found it very useful.
Japan
upvote

John commented on October 07, 2024
This exam dump is not bad at all. Exam itself is hard but I passed.
Netherlands
upvote

Mogi commented on October 07, 2024
simple question
Anonymous
upvote

mOGI commented on October 07, 2024
SIMPLE QUESTIONS
Anonymous
upvote

Ajinkya commented on October 07, 2024
Helped me to crack
Anonymous
upvote

Syama Sundar commented on October 07, 2024
preparing the exam and for testing your questions is helping very much . Really need the other questions to validate my ability.
AUSTRALIA
upvote

Syam commented on October 07, 2024
fantastic support for certification seekers
AUSTRALIA
upvote