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
Natalka [10]
3 years ago
15

How much heat do you need to raise the temperature of 100g of aluminum from 30 C to 150 C

Chemistry
2 answers:
marysya [2.9K]3 years ago
5 0

Answer:

The Answer is actually 10.8 kJ

Explanation:

It's not -10.8 KJ y'all, do NOT get confused. I got it wrong when I wrote -10.8 KJ. I took the test and it's 10.8 KJ without the negative.

SVEN [57.7K]3 years ago
4 0

Answer:

Q = 10.8 KJ

Explanation:

Given data:

Mass of Al= 100g

Initial temperature = 30°C

Final temperature = 150°C

Heat required = ?

Solution:

Specific heat of Al = 0.90 j/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 150°C - 30°C

ΔT = 120°C

Q = 100g×0.90 J/g.°C× 120°C

Q = 10800 J       (10800j×1KJ/1000 j)

Q = 10.8 KJ

You might be interested in
2. What is the name of the compound AIPO?
Andru [333]

Answer:

Aluminum phosphate

Explanation:

7 0
2 years ago
If three molecules of hydrogen react with one molecule of nitrogen, how many molecules of ammonia would be formed?
joja [24]

Answer:

The answer to your question is 2 molecules, or B(edg 2021).

Explanation:

edg 2021

8 0
2 years ago
a swimming-pool worker wants the pools pH to be 7.2. She comes by to test the water and finds that the pH is 6.2. What should sh
nikdorinn [45]
Add an alkaline compound to raise the pH to 7.2.
3 0
3 years ago
which of the following compounds exhibits dipole -dipole forces as its strongest attraction between molecules? o2,ch3Br,CCl4,He,
Archy [21]

Answer:

B. CH3Br

Explanation:

Dipole -Dipole interactions take place in polar molecules.

CH3Br exhibits dipole -dipole forces as its strongest attraction between molecules because it is a polar molecule due to the slightly negative dipole present on the Br molecule.

While O2 is a nonpolar molecule due to its linear structure, CCl4 has zero resultant dipole moment, Helium is non-polar and BrCH2CH2OH is a non polar compound having net dipole moment is zero.

Hence, the correct option is B. CH3Br.

3 0
3 years ago
I need help plez! Thank you!
vladimir2022 [97]
The answer should be E,C,F,B,A,D in that order.
6 0
3 years ago
Other questions:
  • The names of monatomic anions are formed by replacing the ending of the name of the element with
    5·1 answer
  • Combustion of 7.54 g of liquid benzene (C6H6) causes a temperature rise of 50.3°C in a constant-pressure calorimeter that has a
    5·1 answer
  • How many moles of mercury(II) oxide, HgO, are needed to pro- duce 125 g of oxygen, O2?
    14·1 answer
  • HELP ASAP
    14·1 answer
  • What is the energy of light associated with a transition from n=3 to n=8 in a hydrogen atom? Does this represent absorption or e
    6·1 answer
  • A flask contains 0.100 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.
    13·1 answer
  • Which property of CNG is used to fill it in cylinders?
    10·1 answer
  • Calculate the percentage of CL in AL(CLO3)3​
    12·1 answer
  • Which statement best illustrates how mixtures and pure substances are different?
    5·1 answer
  • 4. Which of the following methods of preserving food keeps food for long without going bad by making bacteria inactive? A. Freez
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!