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
givi [52]
3 years ago
12

How much heat must be used to raise the

Chemistry
1 answer:
Artist 52 [7]3 years ago
8 0

Answer:

Q =  57934.8 J

Explanation:

Given data:

Mass of water = 180.0 g

Initial temperature = 19°C

Fina temperature = 96°C

Specific heat capacity of water = 4.18 J/g.°C

Heat absorbed = ?

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 = 96°C - 19°C

ΔT = 77°C

Q = 180.0 g×4.18 J/g.°C×77°C

Q =  57934.8 J

You might be interested in
The density of Mg is 1.74g/cm3. The density of strontium is 2.60g/cm3. What would you expect the density of Ca to be?
Tomtit [17]

The density of Ca will be between that of Mg and Sr

Explanation:

Ca, Mg and Sr are group II elements. They are called alkali earth metals. The correct order of the elements in this group are: Be, Mg, Ca, Sr, Ba and Ra.

Density is an intensive property of matter which describes the amount of matter(mass) per volume of a substance.

  • Density varies proportionally with mass. The higher the mass, the higher its density.
  • On the periodic table, atomic mass which the number of protons and neutrons in the nucleus of an atom increases down the group.
  • This implies a progradation in the value of density down the group. Therefore one expects that the value of density of Ca will fall between that of Mg and Sr. It cannot be more than 2.6g/cm³ nor less than 1.74g/cm³.

Learn more:

density brainly.com/question/2658982

mass number brainly.com/question/2597088

#learnwithBrainly

                   

6 0
3 years ago
A 3000 MWt fast reactor has a 42% efficiency. This reactor operates for 23 months followed by a 1 month down time for refueling
n200080 [17]

Answer:

capacity factor = 0.952

Availability factor = 0.958

Explanation:

1) capacity factor

capacity factor = actual power output /  maximum power output

                        = (actual power output)/(efficiency * rated power output)

                       = \frac{1200}{\frac{42}{100}*3000}

= 0.952

2) Availability factor

Availability factor  = Actual operation time period/ total time period

                            = 23/24 = 0.958

8 0
3 years ago
Which is a substance that could be found in air , water , or soil that is harmful to humans or animals?
aleksklad [387]

Answer: Pollutant

Explanation:

3 0
3 years ago
Read 2 more answers
Need help answering
svp [43]

Answer:

Your answer would be E

Explanation:

4 0
2 years ago
A piece of metal has a volume of 30.0cm3 and a mass of 252g. What is its density? what metal do you think this is?
Alborosie

Answer:

Explanation:

  1. get density = D = m / V = 0.252 / 0.00003 = 8400
  2. metal will be Cu => bronze
3 0
3 years ago
Other questions:
  • If the empirical formula of a compound is C2H5 and the Molecular mass is 87g/mol what is the molecular formula?
    14·1 answer
  • A student wants to make 100 mL of 0.30 M HCl. How many milliliters of 6.0 M HCl is needed to make this solution
    7·1 answer
  • What is the name of this hydrocarbon?
    11·1 answer
  • A 55.0 gallon drum weighs 75.0 lb when empty. What will be the total mass when filled with ethyl alcohol? ( Density = 0.789 g/mL
    8·1 answer
  • Which element is very toxic and reactive green gas?
    10·2 answers
  • Earth is unique because it is the _____.
    10·2 answers
  • Can you discribe physical and chemical properties
    15·1 answer
  • In going from room temperature 25° to 35 the rate of a reaction doubles calculate the activation energy for the reaction
    9·1 answer
  • Which of the following is not a way water gets polluted in<br> the household?
    9·1 answer
  • 49. How much precipitate would result if you have 50 grams of NaCl at 10 degrees Celsius and its cooled to saturation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!