1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lisa [10]
3 years ago
13

The molar heat of vaporization of water is 40.7 kJ mol . How much heat must be absorbed to convert 50.0 grams of liquid water at

100oC to steam at 100oC?
Chemistry
1 answer:
podryga [215]3 years ago
8 0
Molar mass of water 18g/mol

Number of mols = 50.0g/18g/mol =2.78 mol

 Heat absorbed = 40.7 kj/mol * 2.78 mol = 113.1 kj.
You might be interested in
A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for severa
Ierofanga [76]

Answer: Water inside the seed coat creating a pushing force, breaking the seed coat.

Explanation:

Seed germination can be defined as the process by which a new plant emerge out from a seed. The radicle is the first emerging part from a seed and it develops into a root and the plumule is the second emerging part and it develops into a shoot. The light, water, adequate temperature, and soil are the factors that are necessary for seed germination.

According to a given situation, the popcorn kernel will receive the moisture necessary for the germination process, the water will imbibe into the seed coat creating pressure inside the seed and which will cause the seed coat to break and the new plant parts or seedling will emerge out of the seed coat.

8 0
3 years ago
True
Iteru [2.4K]

Answer:

The question 7 answer is false

the question 8 answer is true

8 0
3 years ago
What is physical and chemical changes in your own word?
mina [271]
Physical is something you can see with your eyes Chemical is something you can not
3 0
3 years ago
Read 2 more answers
What leads to the formation of a wind chill factor ​
Reil [10]

Answer:

What leads to the formation of a wind chill factor? A change in the air temperature creates air pressure differences in the atmosphere

Explanation:

hope this helps :)

8 0
3 years ago
Fe(CN)63- + Re → Fe(CN)64- + ReO4--. What is reduced?
givi [52]

Answer:

1. Fe is reduced

2. Mn is Oxidized

3. N is oxidized

Explanation:

<em>Check the image below:</em>

Reducing agent is an element or compound that loses an electron to an electron recipient in a redox chemical reaction. oxidizing agent is a substance that has the ability to oxidize other substances — in other words to accept their electrons.

6 0
4 years ago
Other questions:
  • The radius of an atom of gold is 1.35 angstrom how many would have to be lined up to span 1.0 mm
    11·1 answer
  • A substance made up of a combination of two or more elements held together by chemical bonds that can not be separated by physic
    14·1 answer
  • A monatomic ion has a charge of +2. The nucleus of the parent atom has a mass number of 55. If the number of neutrons in the nuc
    12·1 answer
  • Where is energy stored in living sytems
    7·1 answer
  • How many moles of cesium xenon heptafloride can be produced from the reaction 12 mol cesium Floride with 14 mol xenon hexaflorid
    10·1 answer
  • When a change of substance occurs, and when solutions are
    9·1 answer
  • How many atoms of carbon are included in one formula unit of the compound Na2C2O4?
    14·1 answer
  • What is the equivalent to √-80
    12·1 answer
  • E. Is it metal or non-metal? Why?<br>P<br>nº<br>fig. 11.12​
    15·1 answer
  • 4. What are the freezing and boiling points of water on the Fahrenheit scale? On the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!