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
kumpel [21]
2 years ago
6

A sample of iron is put into a calorimeter (see sketch at right) that contains of water. The iron sample starts off at and the t

emperature of the water starts off at . When the temperature of the water stops changing it's . The pressure remains constant at . Calculate the specific heat capacity of iron according to this experiment. Be sure your answer is rounded to the correct number of significant digits.
Chemistry
1 answer:
Mariulka [41]2 years ago
5 0

Answer:

Therefore, the specific heat capacity of the iron is 0.567J/g.°C.

<em>Note: The question is incomplete. The complete question is given as follows:</em>

<em>A 59.1 g sample of iron is put into a calorimeter (see sketch attached) that contains 100.0 g of water. The iron sample starts off at 85.0 °C and the temperature of the water starts off at 23.0 °C. When the temperature of the water stops changing it's 27.6 °C. The pressure remains constant at 1 atm. </em>

<em> Calculate the specific heat capacity of iron according to this experiment. Be sure your answer is rounded to the correct number of significant digits</em>

Explanation:

Using the formula of heat, Q = mc∆T  

where Q = heat energy (Joules, J), m = mass of a substance (g)

c = specific heat capacity (J/g∙°C), ∆T = change in temperature (°C)

When the hot iron is placed in the water, the temperature of the iron and water attains equilibrium when the temperature stops changing at 27.6 °C. Since it is assumed that heat exchange occurs only between the iron metal and water; Heat lost by Iron = Heat gained by water

mass of iron  = 59.1 g, c = ?, Tinitial = 85.0 °C, Tfinal = 27.6 °C

∆T = 85.0 °C - 27.6 °C = 57.4 °C

mass of water = 100.0 g, c = 4.184 J/g∙°C, Tinitial = 23.0 °C, Tfinal = 27.6 °C

∆T = 27.6°C - 23.0°C = 4.6 °C

Substituting the values above in the equation; Heat lost by Iron = Heat gained by water

59.1 g * c * 57.4 °C  = 100.0 g * 4.184 J/g.°C * 4.6 °C

c = 0.567 J/g.°C

Therefore, the specific heat capacity of the iron is 0.567 J/g.°C.

You might be interested in
Which pH indicates a substance that is more acidic than a substance with a pH of 4
dexar [7]
Anything with a pH level of 3, 2, or 1.
8 0
3 years ago
Do sec-butyl alcohol has two stereoisomers.
denis23 [38]

Answer:

yes

Explanation:

3 0
2 years ago
6. What happens to the energy of the transition state when a catalyst is used?
nika2105 [10]

Answer:

D I think the answer is D for this question

7 0
3 years ago
Read 2 more answers
An unknown mass of aluminum requires 6290 joules to raise the tempature from 23.9 degrees c to 80.0 degrees c what is the Mass o
Katyanochek1 [597]
Answer: the mass of aluminum is 124.579 g

7 0
2 years ago
Which of the water softener​
WARRIOR [948]

Answer:

GAS

Explanation:

8 0
3 years ago
Other questions:
  • Which of the following shows both the correct formula and correct name of an acid?
    13·2 answers
  • Consider the following equilibrium: H2CO3+H2O = H3O+HCO3^-1. What is the correct equilibrium expression?
    10·1 answer
  • An atom of which element is represented by the model of a neutral atom? A Carbon (C) B Oxygen (O) C Sulfur (S) D Nitrogen (N) 6.
    13·1 answer
  • Element X had a mass of 300g and a 1/2 life of 10 years. how many grams will remain after 40 years?
    13·1 answer
  • Acts as the digestive system inside a cell. It helps to break down old or unneeded parts of the cell, and substances that have b
    5·1 answer
  • On the diagram below, circle the position of the where the southern hemisphere is experiencing spring. Justify your answer
    6·2 answers
  • A flask of fixed volume contains 1.0 mole of gaseous carbon dioxide and 88 g of solid carbon dioxide. The original pressure and
    13·1 answer
  • NH4NO3, (aq) + Ba(OH)2(aq) →
    11·1 answer
  • Drag each tile to the correct location. <br><br> Identify the verb used in each sentence.
    14·1 answer
  • A.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!