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
makkiz [27]
3 years ago
9

The heat of a reaction may be found with the equation q=mcΔT. A hot pot is set on a 2.51 kg slab of granite. The temperature of

the granite increases from room temperature, 23.5°C, to 98.6°C. Calculate the heat absorbed by the granite given that the specific heat capacity of granite is 0.79 J/(g*°C). A) 47 kJ B) 129 kJ C) 149 kJ D) 196 kJ
Chemistry
2 answers:
ahrayia [7]3 years ago
6 0

The answer is C) 149 kJ

bagirrra123 [75]3 years ago
3 0
I believe the answer to that is c!!!
You might be interested in
How many grams of material is lost in the aqueous phase if two extractions are carried out on 100 mL of a 5% (m/v) aqueous solut
san4es73 [151]

Answer:

4.94g of material

Explanation:

Partition coefficient (Kp) of a substance is defined as the ratio between concentration of organic solution and aqueous solution, that is:

Kp = <em>8 = Concentration in Ethyl acetate / Concentration in water</em>

100mL of a 5% solution contains 5g of material in 100mL of water. Thus:

8 = X / 100mL / (5g-X) / 100mL

<em>Where X is the amount of material in grams that comes to the organic phase.</em>

8 = X / 100mL / (5g-X) / 100mL

8 = 100X / (500-100X)

4000 - 800X = 100X

4000 = 900X

4.44g = X

<em>Thus, in the first extraction you will lost 4.44g of material from the aqueous phase.</em>

And will remain 5g-4.44g = 0.56g.

In the second extraction:

8 = X / 100mL / (0.56g-X) / 100mL

8 = 100X / (56-100X)

448 - 800X = 100X

448 = 900X

0.50g = X

<em>In the second extraction, you will extract 0.50g of material</em>

Thus, after the two extraction you will lost:

4.44g + 0.50g = <em>4.94g of material</em>

<em></em>

6 0
3 years ago
What measures are used to calculate the percent by volume of a solution?
Yuliya22 [10]
Titration is the method used.
4 0
3 years ago
How does an underwater earthquake cause a tsunami? I need this for an assignment, if you could send me some links or a thoroughl
mars1129 [50]
An earthquake happens when tectonic plates move against each other. A oceanic and a continental tectonic plates might move against each other. When that happens water is pushed upwards and it creates ripples that then move towards land. It's like throwing a rock in water but a lot bigger. I can't post external links on Brainly but you can find more information about tsunami's on Google
4 0
3 years ago
How many moles of oxygen are in 1 mole of Pb(SO4)2
irakobra [83]
The answer to the question is Eight
4 0
3 years ago
Read 2 more answers
How many milligrams are in 2.5 kg?
ludmilkaskok [199]

Answer:

There are 2500000 milligrams in 2.5 kg

7 0
3 years ago
Other questions:
  • Which milligram quantity contains a total of four significant figures
    10·2 answers
  • You apply 100.0 n of force to a machine. The machine applies 20.0 n of force to the load. What is the mechanical advantage of th
    12·1 answer
  • What color would you expect a weak base to turn the paper?
    13·1 answer
  • Draw a structure for an alcohol that exhibits a molecular ion at M+ = 74 and that produces fragments at m/z = 59, m/z = 56 and m
    15·1 answer
  • A compound formed from titanium and oxygen has the formula TiO2. Which of the following is true about the ratio of number Ti and
    13·1 answer
  • Can someone help me out with this?
    14·1 answer
  • How does the mass of a gas particle affect its rate of effusion?
    11·1 answer
  • must undergo addition because they have easily broken π bonds. ____________ rule states in the addition of HX to an unsymmetrica
    8·1 answer
  • The graph below shows how the temperature and volume of a gas vary when
    6·1 answer
  • Some molecules in air contain .<br> Explain how atoms from the air can become part of human cells
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!