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
3. Unlike global winds, local winds (select the two answers that are correct)
Viktor [21]

Answer:

Small-scale convection currents arise from uneven heating on a smaller scale. This kind of heating occurs along a coast and in the mountains. Small-scale convection currents cause local winds. Local winds blow over a much smaller area and change direction and speed over a shorter period of time than global winds.

Maybe that will help you answer the question.

6 0
3 years ago
What information does the atominic numer give you about an element
uysha [10]

Answer:

It gives the number of protons in the nucleus of each atom of that element.

Explanation:

6 0
2 years ago
I need help click the image please help
Viefleur [7K]

Answer:

Answer:

a plant cell

Explanation:

because the chrolopast is green

Explanation:

6 0
3 years ago
A voltaic cell utilizes the following reaction: 4Fe2+(aq)+O2(g)+4H+(aq)→4Fe3+(aq)+2H2O(l). What is the emf of this cell under st
Leviafan [203]

Answer:

0.46 V

Explanation:

The emf for the cell is given by:

Eº cell = Eº oxidation + Eº reduction

From the  given balanced chemical equation, we can deduce that Fe²⁺ has been oxidized to Fe³⁺, and O reduced  from 0 to negative 2, according to the half cell reactions:

4Fe²⁺  ⇒ Fe³⁺ + 4e⁻           oxidation

O₂ + 4H⁺ + 4 e⁻ ⇒ 2 H₂O   reduction

From reference tables for the standard reduction potential, we get

Eº red Fe³⁺ / Fe²⁺   Eºred = 0.77 V  

Eº red O₂ / H₂O      Eºred = 1.23 V

Now all we need to do is change the sign of Eº reduction for the species being oxidized ( Fe²⁺ ) and add it to Eº reduction  O₂:

Eº cell =   Eº oxidation + Eº reduction = - (0.77 V ) + 1.23 V = 0.46 V

5 0
3 years ago
Can someone help me on some of these question please : )
frez [133]
X-Ray used to Take images of teeth and bones.
Ultraviolet night vision goggle
4 0
3 years ago
Other questions:
  • Which description below represents a hydrocarbon?
    11·1 answer
  • While performing the Acid-catalyzed Hydrolysis of Epoxides experiment you used a solution containing 1.84 mL of cyclohexene oxid
    12·1 answer
  • How many significant figures does the number 0.00650<br> have?
    12·2 answers
  • What is the Ksp value of Au(OH)3 in chemistry?!​
    12·1 answer
  • Activation energy Group of answer choices is only required in catabolic reactions that release energy. is not required at all wh
    12·1 answer
  • When it's noon in San Diego is it low tide, high tide or does it depend?
    14·1 answer
  • If you have 3 moles of calcium carbonate, how many grams of calcium bicarbonate are formed?
    7·1 answer
  • HCIO,
    11·2 answers
  • Why do scientists follow a set oder of steps when carrying out a scientific investigation?
    9·1 answer
  • Which of these options is the odd one out?<br>Molecule <br>Atom<br>Compound<br>Mixture​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!