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
inessss [21]
3 years ago
8

a 125 g chunk of aluminum at 182 degrees Celsius was added to a bucket filled with 365 g of water at 22.0 degrees Celsius. Ignor

ing the specific heat of the bucket, calculate the final temperature of the two compounds once thermal equilibrium is reached
Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
7 0
<h3>Answer:</h3>

32.98°C

<h3>Explanation:</h3>

We are given the following;

Mass of Aluminium as 125 g

Initial temperature of Aluminium as 182°C

Mass of water as 265 g

Initial temperature of water as 22°C

We are required to calculate the final temperature of the two compounds;

First, we need to know the specific heat capacity of each;

Specific heat capacity of Aluminium is 0.9 J/g°C

Specific heat capacity of water is 4.184 J/g°C

<h3>Step 1: Calculate the Quantity of heat gained by water.</h3>

Assuming the final temperature is X°C

we know, Q = mcΔT

Change in temperature, ΔT = (X-22)°C

therefore;

Q = 365 g × 4.184 J/g°C × (X-22)°C

    = (1527.16X-33,597.52) Joules

<h3>Step 2: Calculate the quantity of heat released by Aluminium </h3>

Using the final temperature, X°C

Change in temperature, ΔT = -(X°- 182°)C (negative because heat was lost)

Therefore;

Q = 125 g × 0.90 J/g°C × (182°-X°)C

  = (20,475- 112.5X) Joules

<h3>Step 3: Calculating the final temperature</h3>

We need to know that the heat released by aluminium is equal to heat absorbed by water.

Therefore;

(20,475- 112.5X) Joules = (1527.16X-33,597.52) Joules

Combining the like terms;

1639.66X = 54072.52

             X = 32.978°C

                = 32.98°C

Therefore, the final temperature of the two compounds will be 32.98°C

You might be interested in
What are two factors that can affect salinity?
Oxana [17]

Answer:

precipitation and evaporation

Explanation:

salinity :salt concentration

Precipitation: this brings freshwater into the ocean which are not salty, so it is diluting its salt concentration.

evaporation: takes all the water and leaves the salt behind

5 0
3 years ago
an alpha particle is identical to a). a neutron b) a helium nucleus c) an electron d) a hydrogen nucleus​
ElenaW [278]

Alpha particles, also called alpha ray or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a <u>helium-4 nucleus. </u>They are generally produced in the process of alpha decay, but may also be produced in other ways.

Composition: 2 protons, 2 neutrons

Mass: 6.644657230(82)×10−27 kg; 4.0015061...

Electric charge: +2 e

Symbol: α, α2+, He2+

3 0
3 years ago
Read 2 more answers
Which option is an example of a chemical property?
irakobra [83]

Answer:

melting point.

Explanation:

6 0
3 years ago
How many valence electrons do the alkaline earth metals have?
sergeinik [125]
The alkaline earth metals have two valence electrons , hope this helps <3 .
6 0
3 years ago
Can u pls help me with this question ​
Akimi4 [234]

Answer:

B

Explanation:

6 0
3 years ago
Other questions:
  • Calculate the molar solubility of fe(oh)2 in pure water. (the value of ksp for fe(oh)2 is 4.87×10−17.)
    7·1 answer
  • What is the mass number of an ion with 107 electrons, 159 neutrons, and a +1 charge? express your answer as an integer?
    13·1 answer
  • The science of molecules and and their is called chemistry
    13·2 answers
  • A chemist needs 1.36 mol of strontium bromide, SrBr2, for a reaction. What mass of strontium chloride should the chemist use?
    5·2 answers
  • The forces between water molecules are stronger than the forces between ethanol molecules. Which liquid would probably be most d
    12·2 answers
  • Which would affect global transportation if depleted?
    12·1 answer
  • How many mL (to the nearest mL) of 0.140-M KF solution should be added to 400. mL of 0.212-M HF to prepare a pH
    14·1 answer
  • Which statement best describes the light that will cause emission of electrons from a given metal through the photoelectric effe
    8·1 answer
  • How does the amount of force applied to an object affect its motion?
    7·1 answer
  • What id the study of living things called
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!