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
ikadub [295]
2 years ago
12

A student mixes a 10.0 ml sample of 1.0 m naoh(aq) with a 10.0 ml sample of 1.0 m hcl(aq) in a polystyrene container. the temper

ature of the solutions before mixing was 20.0°c. if the final temperature of the mixture is 26.0°c, what is the experimental value of dhrxn 
Chemistry
1 answer:
AleksAgata [21]2 years ago
5 0
Hrxn = Q reaction / mol of reaction
mol of reaction = M * V = 10 * 1 = 10 mmol = 0.01 mol
Q water = m * C * (Tf - Ti)
             = (10 + 10) (4.184) (26-20) = 502.08 J
Q reaction = - Q water = -502.08 J
Hrxn = -502.08 / (0.01) = - 50208 J = - 50.21 kJ/mol
You might be interested in
Is melting an ice cube on your hand a chemical or physical and why? Need reasons!!
xenn [34]
Physical, because the ice is only changing it's state. It's not changing to a new substance.
8 0
3 years ago
Read 2 more answers
The smallest particle of matter that retains the chemical properties of carbon is a carbon:
Drupady [299]
The answer will be Carbon Molecule
7 0
3 years ago
Which living thing would u expect to find in a swamp
stich3 [128]

Alligators, Crocodiles, Anacondas, Beavers, Fish , Frogs and MANY more.



~mathnerdz

6 0
3 years ago
Resistance of a material being scratched in known as
Wittaler [7]
Resistance of a material being scratched in known as: Hardness
3 0
2 years ago
Read 2 more answers
A chemist wants to combine sodium with a halogen. The halogen must have a higher atomic mass than sodium. Which of the following
user100 [1]

Answer:

bromine

Explanation:

i just know

8 0
3 years ago
Other questions:
  • Why does the daylight increase when it get closer to summer
    11·2 answers
  • Jeremy hypothesized that adults with blue eyes are shorter than adults with brown eyes. He collected data by visiting all of the
    15·2 answers
  • A sample of oxygen has a volume of 128 milliliter at a pressure of 500.0 mmhg calculate the volume this sample would occupy at s
    6·1 answer
  • Which of the following salts is the least soluble in water?
    11·2 answers
  • Which of the following is a result of the greenhouse effect?
    6·1 answer
  • What is the room temperature of water?
    13·1 answer
  • Molar solubility of CuBr Ksp = 6.3 x 10-9
    12·1 answer
  • What is the mass of 4.76 moles of Na3Po4?
    10·1 answer
  • Which of these best describe a flight that is approaching the speed of sound
    15·1 answer
  • What is occurring in the image below?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!