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
almond37 [142]
3 years ago
10

2. How much heat is released when 432g of water cools down from 710C to 180C?

Chemistry
1 answer:
nadya68 [22]3 years ago
7 0
The heat released by the water when it cools down by a temperature difference AT

is Q = mC,AT

where

m=432 g is the mass of the water

C, = 4.18J/gºC

is the specific heat capacity of water

AT = 71°C -18°C = 530

is the decrease of temperature of the water

Plugging the numbers into the equation, we find

Q = (4329)(4.18J/9°C)(53°C) = 9.57. 104J

and this is the amount of heat released by the water.
You might be interested in
Jenny wants to test the electrical conductivity of two substances dissolved in water. She is preparing the containers for the ex
katen-ka-za [31]

Answer:

Volume of the solutions

This is the most important factor for her to control.

3 0
3 years ago
A very hot cube of copper metal (32.5 g) is submerged into 105.3 g of water at 15.4 0C and it reach a thermal equilibrium of 17.
zysi [14]

Answer:

The initial temperature of the metal is 84.149 °C.

Explanation:

The heat lost by the metal will be equivalent to the heat gain by the water.  

- (msΔT)metal = (msΔT)water

-32.5 grams × 0.365 J/g°C × ΔT = 105.3 grams × 4.18 J/g °C × (17.3 -15.4)°C

-ΔT = 836.29/12.51 °C

-ΔT = 66.89 °C

-(T final - T initial) = 66.89 °C

T initial = 66.89 °C + T final

T initial = 66.89 °C + 17.3 °C

T initial = 84.149 °C.

7 0
3 years ago
The Earth's period of revolution is 365.25 days. Convert this period of revolution into hours
Helga [31]
8,766 hours is your answer :)
4 0
3 years ago
What is the name of the monomer that polymerizes to form polymethylmethacrylate
Cloud [144]

Answer:

polymethylmethacrylate bone cement is a polymer formed by mixing highly volatile liquid methylmethacrylate (MMA) monomer with an accelerator, polymethylmethacrylate powder. This bone cement is used during orthopedic surgery to implant prostheses for joint replacement

Explanation:

it was so easy thanks for the work form my brain

7 0
3 years ago
Answer plsssss I’m dumb
aev [14]

Answer:

bottom middle

middle top

top bottom

Explanation:

4 0
3 years ago
Other questions:
  • Suppose you held two magnets a short distance apart,then let go. what would happen?
    7·2 answers
  • A powder contains FeSO4⋅7H2O (molar mass=278.01 g/mol), among other components. A 3.930 g sample of the powder was dissolved in
    13·1 answer
  • The pH scale for acidity is defined by pH=−log10[H⁺] where [H⁺]is the concentration of hydrogen ions measured in moles per liter
    5·1 answer
  • 3 examples of substance that are soluble in water?
    14·2 answers
  • The following is true about an index fossil:
    15·1 answer
  • What do elements in a same group share
    7·2 answers
  • What is the volume, in liters, of a 0.2 M solution containing 8.5 grams of AgNO3?
    5·1 answer
  • BASED ON THE INFORMATION BELOW. CALCULATE THE MASS FOR ONE OF THESE ATOMS:
    5·1 answer
  • Which traits does the western harvest mouse have that might be adaptive for the environment where it lives?
    5·1 answer
  • Pick the correct answer!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!