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
Viefleur [7K]
4 years ago
11

PLEASE HELP

Chemistry
1 answer:
earnstyle [38]4 years ago
6 0
Answer:
               Cp  =  0.093 J.g⁻¹.°C⁻¹
Solution:

The equation used for this problem is as follow,

                                                  Q  =  m Cp ΔT   ----- (1)

Where;
            Q  =  Heat  =  300 J

            m  =  mass  =  267 g

            Cp  =  Specific Heat Capacity  =  ??

            ΔT  =  Change in Temperature  =  12 °C

Solving eq. 1 for Cp,

                                 Cp  =  Q / m ΔT


Putting values,
                                 Cp  =  300 J / (267 g × 12 °C)

                                 Cp  =  0.093 J.g⁻¹.°C⁻¹
You might be interested in
Write down the names of compounds represented by the following formulae:
Angelina_Jolie [31]
A-Aluminium sulphate.
B-Calcium Chloride.
C-Potassium sulphate.
D-Potassium Nitrate .
E-Calcium Carbonate.
8 0
3 years ago
Certain metal oxide has the formula MO where M denotes the metal. A 73.35−g sample of the compound is strongly heated in an atmo
pshichka [43]

Answer:

atomic mass 112.4 and Cadmium (Cd)

Explanation:

You have 73.35 g of MO.

After the reaction the O is removed and you only have M which the mass is 64.21 g.

With that you can calculate the mass of O removed:

Mass of O = 9.14 g

Mass = AM * moles ; (AM : Atomic Mass)

9.14 = 16 * moles

moles = 9.14 / 16

moles = 0.57125

The formula of the metal oxide is MO, meaning it has 1 mole of M per mole of O. 73.35 had 0.57125 moles of O, then it also had 0.57125 moles of M, and the remaining mass of 64.21 g represents those moles

Mass = AM * moles ; (AM : Atomic Mass)

64.21 = AM * 0.57125

AM = 64.21/0.57125 = 112.4 amu

The metal with an atomic mass of 112.4 is Cadmium (Cd), therefore the metal oxide is CdO

7 0
3 years ago
Which statement best describes how electrons fill orbitals in the periodic table?
sp2606 [1]
The arrangement of the periodic table is related to the electron configuration of the atoms of each element. Electron configurations represents how electrons are distributed. For instance, the neon atom has the electron configuration of 1s^2 2s^2 2p^6.
5 0
3 years ago
List some important functions of proteins.
marshall27 [118]
  • Growth and Maintenance.
  • Causes Biochemical Reactions.
  • Acts as a Messenger.
  • Provides Structure.
  • Maintains Proper pH.
  • Balances Fluids.
  • Bolsters Immune Health.
  • Transports and Stores Nutrients.

5 0
3 years ago
A Wisconsin farmer taps a maple tree and collects 200 liters of sap. He determines the sucrose (C12H2011) concentration to be 0.
Minchanka [31]

Answer:

6.0 L

Explanation:

Use the dilution equation M1V1 = M2V2

M1 = 0.075 M

V1 = 200 L

M2 = 2.5 M

V2 = ?

Solve for V2 --> V2 = M1V1/M2

V2 = (0.075 M)(200 L) / (2.5 M) = 6.0 L

4 0
3 years ago
Other questions:
  • How is earths moon different from the moons of other planets
    10·2 answers
  • Express (158 lb)2 to three significant figures with appropriate units
    8·2 answers
  • Whats the noble gas notation for copper
    14·1 answer
  • Heating Curve
    7·1 answer
  • Does substitution reactions cause haloalkanes?
    13·1 answer
  • Which of the following statements are true with respect to enzyme activity? Check all that apply. View Available Hint(s) Check a
    9·1 answer
  • Atom A has seven electrons in its outer shell. Atom B has one electron in its outer shell. They react and bond. Now both atoms h
    6·1 answer
  • What are the difference between hemogeneous mixture and heterogeneous mixture ??​
    10·1 answer
  • A 100 g sample of potassium chlorate, KCIO3(s), is completely decomposed by heating:
    13·1 answer
  • A sample of a pure substance with a density of 3 g/mL is separated into two pieces. One piece has a mass of 50 g and the other p
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!