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
Lana71 [14]
3 years ago
11

Calculate the amount of energy that is absorbed by 75 g.. water

Chemistry
1 answer:
Contact [7]3 years ago
8 0

Answer:

Q = 1147.5 cal

Explanation:

Given data:

Energy absorbed = ?

Mass of water = 75 g

Initial temperature = 22.5°C

Final temperature = 37.8°C

Specific heat of water = 1 cal/g.°C

Solution:

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  = T2- T1

ΔT  = 37.8°C - 22.5°C

ΔT  = 15.3 °C

Q = m.c. ΔT

Q = 75 g . 1 cal/g.°C . 15.3 °C

Q = 1147.5 cal

You might be interested in
If 2.50 mol of copper and 5.50 mol of silver nitrate are available to react by single replacement, identify the limiting reactan
PIT_PIT [208]

Answer:

The limiting reactant is the copper

Explanation:

Moles are the standard unit at which you can compare values, and copper has fewer moles than Silver nitrate, so in a reaction, it would be used up first, leaving Silver nitrate in excess.

7 0
2 years ago
A postulate of the kinetic molecular theory is listed.
timofeeve [1]

1) Recording the change in pressure when heating an inflated tire

Explanation:

This happens because with an increase in temperatures, the kinetic energy of the gas in the tire increases. The increase in kinetic energy means the molecules move more rapidly. There is an increased rate of collisions between the gas molecules, and increased energy of the collisions, and between the gas molecules and inner walls of the tire hence the increased pressure. Pressure and temperatures and directly proportional s long as the volume of the gas is kept constant.

5 0
3 years ago
 Can anybody help it 8th grade science about the sun
babymother [125]

Answer:

The sun is at the (edge) of our solar system

and is much (hotter) than anything else in the solar system (95%) of the entire mass of the solar system is contain in the sun

4 0
3 years ago
Date:
WARRIOR [948]

Answer:

b

Explanation:

3 0
3 years ago
Read 2 more answers
Choose the system to which this item belongs: stomach
hram777 [196]
Digestive. This also includes the intestines.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which electromagnetic wave has the longest wavelength?
    14·1 answer
  • Freud argued that a person was more likely to commit crime when what part of the personality wasn’t fully developed?
    6·1 answer
  • How would I do this one?
    7·1 answer
  • Need help asp thank you​
    13·1 answer
  • Where on earth did people decide they wanted to go many years ago
    15·1 answer
  • What is the electron configuration for Bromine? It has 27 electrons. I think the electron configuration for Bromine is : I'm sor
    13·2 answers
  • The symbols for elements with atomic numbers 4, 9, 16, & 17 are? (Respectively)
    9·1 answer
  • PLEASE HURRY I WILL GIVE BRAINYEST
    14·1 answer
  • The genetic material of a prokaryotic cell is found in the
    14·1 answer
  • PLEASE HELP ASAP<br> Label the correct descriptors (volume, temperature, pressure, moles) *
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!