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
FinnZ [79.3K]
3 years ago
15

What amount of heat is released when the temperature of 450.0 g of a

Chemistry
1 answer:
Molodets [167]3 years ago
5 0

Answer:

\boxed {\boxed {\sf 4038.48 \ Joules}}

Explanation:

Since we are given the mass, specific heat, and change in temperature, we should use this formula for heat:

q=mc\Delta T

The substance's mass is 450.0 grams, the specific heat is 1.264 J/g°C, and the  change in temperature is 7.1 °C.

m= 450.0 \ g \\c= 1.264 \ J/g \textdegree C\\\Delta T= 7.1 \ \textdegree C

Substitute the values into the formula.

q= (450.0 \ g)(1.264 \ J/g \textdegree C)(7.1 \ \textdegree C)

Multiply the first 2 values together. The grams will cancel out.

q= 568.8 \ J/ \textdegree C (7.1 \ \textdegree C)

Multiply again. This time, the degrees Celsius cancel out.

q= 4038.48 \ J

<u>4038.48 Joules</u> of heat energy are released.

You might be interested in
How many moles of MgS2O3 are in 201g of the compound?
Tamiku [17]
 <span>divide the 201g by the mol mass of the compound. Just add up the masses of the various element</span>
8 0
3 years ago
In the dark waters just below the photic zone, because of cellular respiration, the concentration of dissolved __________ is hig
Dafna1 [17]
In the dark waters just below the photic zone, because of cellular respiration, the concentration of dissolved carbon dioxide is higher relative to dissolved oxygen. 
In cellular respiration living organisms use oxygen and release carbon dioxide, because there is little or no light there is no photosynthesis and oxygen is little produced.
7 0
3 years ago
Describe how Fire Making undergo heat to light energy transformation.
Pavel [41]

As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some are transformed into light energy. Light energy, also known as radiation or electromagnetic energy, is a type of kinetic energy that takes the form of visible light waves, such as the light from a match.

4 0
3 years ago
Why do oxygen and sulfur have similar chemical properties?
Step2247 [10]

Answer:

Oxygen and sulfur have similar chemical properties because both elements have six electrons in their outermost electron shells. Indeed, both oxygen and sulfur form molecules with two hydrogen atoms: water and hydrogen sulfide

Explanation:

3 0
3 years ago
What was the result of the atomic theory?
Cerrena [4.2K]

Answer:

The result of the atomic theory was atomic theory proposed that all matter was composed of atoms, also postulated that chemical reactions resulted in the rearrangement of the reacting atoms.

4 0
3 years ago
Other questions:
  • A newspaper headline says that the average home uses about 30 kilowatt-hours per day. What is a kilowatt?
    12·2 answers
  • What new theory makes this an exciting time to study the earth?
    10·1 answer
  • Is mud a suspension, solution, or colloid?
    6·2 answers
  • Una solución formada por 58 gramos de cloruro de sodio (NaCl) en 100 mL de solución posee una concentración
    8·1 answer
  • Describe how cloning can be a social issue and give rise to moral, ethical and legal debates. Justify your response in two or mo
    15·1 answer
  • He free energy of a gas depends on __________. (select all correct answers) partial pressure of the gas van der waals constant f
    12·1 answer
  • Which of the following is an example of a PHYSICAL change?
    14·1 answer
  • in an experiment forest, a sample of leaves is weighed over a one year period and is found to lose 83% of its mass. assuming fir
    8·1 answer
  • The daily dose for aspirin recommended by doctors is 81 mg/ day to reduce heart disease. a) In a week how many milligrams are ad
    6·1 answer
  • 25.0 mL of an LiOH solution were titrated with 29.15 mLof a 0.205 M H3PO4 solution to reach the equivalence point. What is the m
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!