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
Ksenya-84 [330]
3 years ago
12

A 110.0-g sample of metal at 82.00°C is added to 110.0 g of H2O(l) at 27.00°C in an insulated container. The temperature rises t

o 30.56°C. Neglecting the heat capacity of the container, what is the specific heat of the metal? The specific heat of H2O(l) is 4.18 J/(g ∙ °C). Group of answer choices 4.18 J/(g ∙ °C) 60.4 J/(g ∙ °C) 0.289 J/(g ∙ °C) 0.289 J/(g ∙ °C) 14.4 J/(g ∙ °C)
Chemistry
2 answers:
erastovalidia [21]3 years ago
7 0

Answer:

The specific heat of the metal is 0.289 J/g°C

Explanation:

Step 1: Data given

Mass of metal = 110.0 grams

Temperature of the metal = 82.00 °C

MAss of water = 110.0 grams

Temperature of the water = 27.00 °C

The final temperature = 30.56 °C

The specific heat of H2O is 4.18 J/(g°C).

Step 2: Calculate the specific heat of the metal

Heat lost = heat gained

Qlost = - Qgained

Qmetal = - Qwater

Q =m*c*ΔT

m(metal)*c(metal)*ΔT(metal) = -m(water) * c(water) *ΔT(water)

⇒with m(metal) = the mass of the metal = 110.0 grams

⇒with c(metal) = the specific heat of the metal = TO BE DETERMINED

⇒with ΔT(metal) = the change of temperature of the metal = T2 - T1 = 30.56 - 82.00 °C= -51.44 °C

⇒with m(water) = the mass of water = 110.0 grams

⇒with c(water) = the specific heat of water = 4.18 J/g°C

⇒with ΔT(water) = the change of temperature of water = T2 - T1 = 30.56 °C - 27.00 °C = 3.56 °C

110.0 * c(metal) * -51.44 = -110.0 * 4.18 * 3.56

c(metal) = 0.289 J/g°C

The specific heat of the metal is 0.289 J/g°C

lina2011 [118]3 years ago
7 0

Answer:

Cp_{metal}=0.289\frac{J}{g^oC}

Explanation:

Hello,

In this case, as the water is cold (lower initial temperature) and the metal is hot (higher initial temperature), the heat lost by the metal is gained by the water to attain an equilibrium temperature of 30.56 °C, this in an equation turns out:

-\Delta H_{metal}=\Delta H_{water}

In such a way, in terms of masses, heat capacities and temperatures we have:

-m_{metal}Cp_{metal}(T_{eq}-T_{metal})=m_{water}Cp_{water}(T_{eq}-T_{water})

Hence, solving for the heat capacity of the metal:

Cp_{metal}=\frac{m_{water}Cp_{water}(T_{eq}-T_{water})}{-m_{metal}Cp_{metal}(T_{eq}-T_{metal})}

Thus, with the given data we obtain:

Cp_{metal}=\frac{110.0g*4.18\frac{J}{g^oC} (30.56^oC-27.00^oC)}{-110.0g(30.56^oC-82.00^oC)}\\\\Cp_{metal}=0.289\frac{J}{g^oC}

Best regards.

You might be interested in
Which material is the least likely to be recognized as a mixture by looking at it under a microscope?
adelina 88 [10]
I don't know what the options were but a material that is very likely going to be challenging to recognize under a microscope as a mixture is a homogeneous mixture. A homogenous mixture is uniform and thus hard to recognize as a mixture. An example is water!
7 0
3 years ago
Read 2 more answers
When many atoms are split in a chain reaction, a large explosion occurs. This is an example of what type of energy conversion? (
lara31 [8.8K]

Answer:

I think is chemical and nuclear

8 0
3 years ago
Read 2 more answers
What are the different areas of an electron cloud called?
max2010maxim [7]
I believe they are called Energy Levels or Energy Orbitals.
5 0
3 years ago
A person's blood type is determined by the presence and absence of specific antigens on the cell membrane. Which of these would
sukhopar [10]

Answer:

C - no antibodies

Explanation:

I dont think there is any blood type without antibodies

5 0
3 years ago
How do I describe an ion?
worty [1.4K]

Answer:

Explanation:

How do I describe an ion?

<h2>an ion is an atom that has had electrons added or taken away from it.</h2><h2>they do this in order to obtain a stable electronic configuration like their closest noble gas..see Periodic Table column 18 which is also column VIIIA</h2><h2>If they gain electrons, they are negative and are called</h2><h2>ANIONS</h2><h2>if they lose  electrons they are positive and are called</h2><h2>CATIONS  </h2><h2 />

5 0
2 years ago
Other questions:
  • 3cuso4 + 2al ------ 3cu + al2(so4)3 in the limiting reagent question above if you have 8.3 g of cuso4 and 20.1 g of al how many
    13·1 answer
  • 2 Points<br> What kind of bond would many atoms of the same metal make?
    15·1 answer
  • What is the number of electrons in the outermost energy level of an oxygen atom
    15·2 answers
  • 5 advantages of storing oil underground in salt dome?
    9·1 answer
  • PLS HELP FAST WILL GIVE BRAINLEST
    11·1 answer
  • A glass breaks is a physical or chemical change
    10·2 answers
  • A 25-mL solution of H2SO4 is completely neutralized by 18 mL of 1.0M NaOH. What is the concentration of the H2SO4?
    10·2 answers
  • When does cell growth occur
    6·2 answers
  • Can you bond 2 silicon atoms (Si) together to form a complete (real) molecule? Explain your reasoning
    6·1 answer
  • OK! this is for the weebs :D
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!