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
tensa zangetsu [6.8K]
3 years ago
10

If 5.100 g of c6h6 is burned and the heat produced from the burning is added to 5691 g of water at 21 °c, what is the final temp

erature of the water?
Chemistry
1 answer:
emmasim [6.3K]3 years ago
4 0
  <span>C6H12 = 6x12 + 6x1 = 78. 
The equation indicates that 2x78 = 156g benzene will produce 6542kJ. 
Using proportions you can then calculate that 
x/6542kJ = 7.9g / 156g 
x = 331.3kJ = 331300J. 

heat = mass x ΔT x 4.18J/g° 
ΔT = 331300J / (5691g x 4.18J/g°) = 13.9° 

final temp = 21 + 14° = 35°C</span>
You might be interested in
Chromium (Cr) can combine with chlorine (Cl2) to form chromium chloride (CrCl3). Which equation is a correct representation of t
scoray [572]
The balanced equation is 2Cr + 3Cl2 = 2CrCl3
7 0
3 years ago
Read 2 more answers
Select the correct electron configuration for Boron. (Atomic Number 5) 1s 22s 12p 2 1s 22s 3 1s 32s 12p 1 1s 22s 22p 1
kodGreya [7K]

ans is: 1s2, 2s2 ,2p1,...

7 0
3 years ago
Cloudy nights are often warmer than clear nights. Why is this so?
dsp73

Answer: B

Explanation: The clouds act almost like a lid. Think of it like when you put tin foil over food before it goes in the oven. so that even after it is removed from the heat the tin foil traps it causing it to stay warm.

4 0
3 years ago
How many electrons will metals generally have in their outer shell
Goshia [24]

Answer:

1 - 3

Explanation:

- Look to see where metals are on the periodic table then look at what group they are in. The group tells you the number of valence electrons. Ex. 1A has one valence electron.

- Hope this helped! If you need a further explanation please let me know.

3 0
3 years ago
Aqueous hydrobromic acid hbr will react with solid sodium hydroxide naoh to produce aqueous sodium bromide nabr and liquid water
Natalka [10]
 Balanced equation is

HBr + NaOH ----> NaBr + H2O

Using molar masses

80.912 g HBr reacts with  39.997 g of Naoh to give 18.007 g water

so 1 gram of NaOH reacts with 2.023 g of HBR   
and 5.7 reacts with 11.531 g HBr so we have excess HBr in this reaction

Mass  of water produced  =    (5.7 * 18.007 / 39.997  =  2.6 g to 2 sig figs
8 0
3 years ago
Read 2 more answers
Other questions:
  • Jimmy's science textbook reflects blue light. What color is the book?
    10·2 answers
  • What would happen to the following endothermic reaction that is in equilibrium if heat is added? N2O4 (g) Two arrows stacked on
    9·2 answers
  • Write the symbol for every chemical element that has atomic number less than 16 and atomic mass greater than 24.0 u.
    10·1 answer
  • Which of the following statements is true about nuclear power? A) It releases greenhouse gases. B) It does not produce wastes. C
    9·1 answer
  • How much heat is required to warm 1.30 l of water from 24.0 ∘c to 100.0∘c? (assume a density of 1.0g/ml for the water.)?
    10·1 answer
  • A solution has pOH 5.9
    12·2 answers
  • Describe how NH3 and CF4 satisfies the octet for all atoms.
    5·1 answer
  • A substance undergoes a change.<br> Which statement indicates that the change was a chemical change?
    15·1 answer
  • Give types of salts and one example each<br>​
    5·1 answer
  • I don’t know what are the ones that are left ,can someone help me please
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!