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
beks73 [17]
3 years ago
9

Calculate the amount of energy required to melt 500 g of ice at 0oc. (δhfus=5.96 kj/mole; δhfus is the energy required to melt i

ce at a constant 0oc; note the units! )
Chemistry
1 answer:
marta [7]3 years ago
3 0
When you want to melt an ice, you only need the latent energy of fusion, <span>δhfus. We use the given value, then multiply this with the given amount to determine the amount of energy. Since the energy is per mole basis, use the molar mass of ice which is 18 g/mol. The solution is as follows:

</span>ΔH = 5.96 kJ/mol * 1 mol/18 g * 500 g
<em>ΔH = 165.56 kJ</em><span>
</span>
You might be interested in
Which property of gases allows them to be stored at high concentrations in a bottle of air freshener?
lorasvet [3.4K]
Compressibility, i think..
7 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST please
astra-53 [7]

Answer:

C is the only reasonable answer.. but this is 6th grade science and I'm in 7th, so I'm pretty sure I'm right

5 0
3 years ago
Which process is an example of a chemical change?
Ivanshal [37]
A metal rail rusting in damp weather.
8 0
3 years ago
Read 2 more answers
How many moles of N are in .235g of N2O
makkiz [27]
Given the molar mass of Nitrogen is 14.01g/mol you can use that to solve for the moles of nitrogen.
0.235g(1mol/14.01g) = .0168 moles.
6 0
3 years ago
How many molecules are there in 560 grams of CoCl2?​
Marrrta [24]

Answer:

25.89  × 10²³ molecules

Explanation:

Given data:

Mass of CoCl₂ = 560 g

Number of molecules present = ?

Solution:

Number of moles of CoCl₂:

Number of moles = mass/molar mass

Number of moles = 560 g/ 129.84 g/mol

Number of moles = 4.3 mol

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

4.3 mol ×  6.022 × 10²³ molecules /1 mol

25.89  × 10²³ molecules

5 0
3 years ago
Other questions:
  • How many grams of sucrose are in 1.80 of a 0.718 sucrose solution
    8·1 answer
  • The smalles part of an element that has all the properties of that element .
    6·2 answers
  • Using the law of conservation of energy, explain why an LED light is more energy efficient that an incandescent light bulb.
    11·1 answer
  • Given the equation: __fecl2 + __na2co3 → __feco3 + __nacl when the equation is correctly balanced using the smallest whole numbe
    11·2 answers
  • This list of characteristics describes organisms in the ________ kingdom.
    5·1 answer
  • The law of universal gravitation states that any two objects in the universe that have mass, without exception,
    8·1 answer
  • What is heat of vaporization?
    8·1 answer
  • If a person weighs 87lbs and has to be given a drug with a dosage of 50 milligrams per kilogram body weight, how many grams of t
    13·1 answer
  • ASAP will get Brainiest<br> question in pic ( multiple select )
    5·2 answers
  • Express your answer as a complete ionic equation including phases. Enter a balanced complete ionic equation for
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!