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
Katarina [22]
3 years ago
7

How much heat will be absorbed by 395g of water when it's temperature is raised by 55°C​

Chemistry
1 answer:
Firdavs [7]3 years ago
3 0

Answer:

\boxed{\text{91 kJ}}

Explanation:

The formula for the heat released is

q = mCΔT

Data:

 m = 395 g

 C = 4.184 J·°C⁻¹g⁻¹

ΔT = 55 °C

Calculations:

q = 395 × 4.184 × 55 = 91 000 J = 91 kJ

The water will absorb \boxed{\textbf{91 kJ}} of energy.

You might be interested in
Why won't a fat–soluble vitamin dissolve in water?
Nataliya [291]
<span>small organic molecules will not dissolve in water cannot be synthesized by body (except vitamin D) supplements packaged in oily gel caps excesses can cause problems since fat-soluble vitamins are not excreted readily</span>
8 0
3 years ago
Which element has 21 neutrons and 20 electrons?
mario62 [17]
Scandium has 21 neutrons
6 0
2 years ago
Read 2 more answers
1. (8pt) Using dimensional analysis convert 600.0 calories into kilojoules
Ivanshal [37]

Answer:

1. 2.510kJ  

2. Q = 1.5 kJ

Explanation:

Hello there!

In this case, according to the given information for this calorimetry problem, we can proceed as follows:

1. Here, we consider the following equivalence statement for converting from calories to joules and from joules to kilojoules:

1cal=4.184J\\\\1kJ=1000J

Then, we perform the conversion as follows:

600.0cal*\frac{4.184J}{1cal}*\frac{1kJ}{1000J}=2.510kJ

2. Here, we use the general heat equation:

Q=mC(T_2-T_1)

And we plug in the given mass, specific heat and initial and final temperature to obtain:

Q=236g*0.24\frac{J}{g\°C} (34.9\°C-8.5\°C)\\\\Q=1495.3J*\frac{1kJ}{1000J} \\\\Q=1.5kJ

Regards!

7 0
2 years ago
Select all of the following statements that represent the differences between a voltaic cell and an electrolytic cell. Group of
Sunny_sXe [5.5K]

Answer:

  • The electrodes will change in mass for only the electrolytic cell
  • Electrode with the lowest reduction potential is reduced in an electrolytic cell
  • A potential is generated when the voltaic cell runs
6 0
3 years ago
Why do health care professionals limit the number of radiation treatments that a person can be given
katovenus [111]
Radiation is s very powerful substance and can cause major health problems do the health care professionals limit the use to help not create sickness
6 0
3 years ago
Other questions:
  • Describe in general a process desert plants might need to carry out in order to maintain homeostasis. (4 points) All plants need
    10·1 answer
  • How many grams of magnesium contain 4.80 x 10^25 atoms of magnesium
    9·1 answer
  • Which process transfers heat from inside earth to its surface
    11·2 answers
  • What element is used to make expensive forks spoons and tableware?
    6·1 answer
  • To balance a chemical equation, one: a. changes the subscripts of the formulas. b. changes the coefficients of the formulas. c.
    9·1 answer
  • The first disinfectant used by Joseph Lister was called carbolic acid. This substance now is known as phenol, C6H5OH (pKa = 9.90
    10·1 answer
  • Earthquakes change the surface of the Earth. Write a response analyzing how the author of "Earthquakes" used cause and effect to
    5·1 answer
  • Can someone help? Ill give brainliest!
    5·1 answer
  • A volcano has no ____<br> only heat.
    6·2 answers
  • Why finger print is the cheapest and easiest method of personal identification?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!