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
AVprozaik [17]
3 years ago
12

How much energy is needed to change 44 grams of ice at -8° to steam at 107°?

Chemistry
1 answer:
Tpy6a [65]3 years ago
5 0
Q=m(c∆t +heat of fusion + heat of evaporation)

m= 44g
c= 4.186 J/g.C
∆t= 107-(-8) =115 C
heat of fusion= 333.55 J/g
heat of evaporation=2260 J/g

Q=44(4.186*115 + 333.55 + 2260)
Q= 135297.36 J
You might be interested in
What is an ecosystem? Please use your own words
ExtremeBDS [4]

Answer:

An ecosystem is a community of species.

Explanation:

i hope this helps i tried^^

7 0
3 years ago
Read 2 more answers
What is molecular formula
Mazyrski [523]

Answer:a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.

Explanation:

3 0
3 years ago
Read 2 more answers
Ammonia and oxygen react to form nitrogen monoxide and water. Construct your own balanced equation to determine the amount of NO
stiv31 [10]

Answer:

NO would form 65.7 g.

H₂O would form 59.13 g.

Explanation:

Given data:

Moles of NH₃ = 2.19

Moles of O₂ = 4.93

Mass of NO produced = ?

Mass of  produced H₂O = ?

Solution:

First of all we will write the balance chemical equation,

4NH₃ + 5O₂   →   4NO + 6H₂O

Now we will compare the moles of NO and H₂O with ammonia from balanced chemical equation:

NH₃  :   NO                                   NH₃  :   H₂O

4     :    4                                          4    :      6

2.19   :    2.19                                 2.19  : 6/4 × 2.19 = 3.285 mol

Now we will compare the moles of NO and H₂O with oxygen from balanced chemical equation:

O₂  :   NO                                               O₂ :   H₂O

5     :    4                                                  5     :    6

4.93   :   4/5×4.93 = 3.944 mol               4.93  : 6/5 × 4.93 = 5.916 mol

we can see that moles of water and nitrogen monoxide produced from the ammonia are less, so ammonia will be limiting reactant and will limit the product yield.

Mass of water = number of  moles × molar mass

Mass of water = 3.285 mol × 18 g/mol

Mass of water = 59.13 g

Mass of nitrogen monoxide  = number of  moles × molar mass

Mass of nitrogen monoxide = 2.19 mol × 30 g/mol

Mass of nitrogen monoxide = 65.7 g

4 0
3 years ago
Two liquids – one polar, one nonpolar – have the same molar mass. which one has the higher boiling point?
Anton [14]
Polar will always have the higher boiling point because they have strong van der waal forces

7 0
4 years ago
Why edible oils shows rancidity when stored for a long time
iren2701 [21]

When edible oils are idle and stored for a long amount of time, they undergo oxidation due to the exposure to oxygen. This oxidation causes rancidity in oils.

4 0
3 years ago
Other questions:
  • Which best describes an element?
    6·2 answers
  • How do you convert moles to grams?
    14·2 answers
  • How is counting a truckload of pennies like counting the atoms in 10.0 g of aluminum? How is it different?
    8·1 answer
  • Using the accepted value for the specific heat of tungsten (See the References tool), calculate the final temperature of the wat
    5·1 answer
  • A 5.00 g piece of metal is heated to 100.0oC, then placed in a beaker containing 20.0 g of water at 10.0oC. The temperature of t
    15·1 answer
  • A 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.01962 mol of
    7·1 answer
  • ELABORE 5 QUESTÕES SOBRE EQUILÍBRIO QUÍMICO, ME AJUDEM PFVR!!!!​
    13·1 answer
  • How many electron shells/orbitals will be around the nucleus of an atom of aluminum?
    11·2 answers
  • Which of the following are not made up of cells ( or a cell )
    5·1 answer
  • Which scenario would result in a population growth of zero? Use this formula: population growth = (birth rate + immigration) – (
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!