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
lianna [129]
3 years ago
15

Please help me

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

Answer:

pH = 6.999

The solution is acidic.

Explanation:

HBr is a strong acid, a very strong one.

In water, this acid is totally dissociated.

HBr + H₂O  →  H₃O⁺  +  Br⁻

We can think pH, as - log 7.75×10⁻¹² but this is 11.1

acid pH can't never be higher than 7.

We apply the charge balance:

[H⁺] = [Br⁻] + [OH⁻]

All the protons come from the bromide and the OH⁻ that come from water.

We can also think [OH⁻] = Kw / [H⁺] so:

[H⁺] = [Br⁻] + Kw / [H⁺]

Now, our unknown is [H⁺]

[H⁺] =  7.75×10⁻¹² + 1×10⁻¹⁴ / [H⁺]

[H⁺] = (7.75×10⁻¹² [H⁺] + 1×10⁻¹⁴) /  [H⁺]

This is quadratic equation:  [H⁺]² - 7.75×10⁻¹² [H⁺] - 1×10⁻¹⁴

a = 1 ; b = - 7.75×10⁻¹² ; c = -1×10⁻¹⁴

(-b +- √(b² - 4ac) / (2a)

[H⁺] = 1.000038751×10⁻⁷

- log [H⁺] = pH → 6.999

A very strong acid as HBr, in this case, it is so diluted that its pH is almost neutral.

You might be interested in
If you could place a piece of solid silver into a container of liquid silver, would it float or sink? Explain your answer.
8_murik_8 [283]
Liquid silver is less dense than solid silver, so the solid silver would sink
7 0
3 years ago
Is Cu2O+C= Cu+CO2 a balanced equation
attashe74 [19]
Cuco4 balanced equation
5 0
3 years ago
How does carbon 14 work
Verdich [7]

Carbon-14 dating is a way of determining the age of certain archeological artifacts of a biological origin up to about 50,000 years old. It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.

 

6 0
3 years ago
Identify the group of elements that does not readily combine with other elements.
7nadin3 [17]
Noble gases
also known as Inert gases
4 0
3 years ago
Describe the type of force which exists between particles in an Ideal gas. Explain why this type of force exists between the par
aksik [14]

The Intermolecular force is a type of force which exists between particles in an Ideal gas.

<h3>What  type of force which exists between particles in an Ideal gas?</h3>

Intermolecular forces are considered weaker attractions that hold molecules in gas close together. This force of attraction is present between molecules or particles.

So we can conclude that the Intermolecular force is a type of force which exists between particles in an Ideal gas.

Learn more about attraction here: brainly.com/question/1308963

#SPJ1

8 0
2 years ago
Other questions:
  • An experiment with high validity is
    6·1 answer
  • a rope breaks when the tension reaches 305N what is the largest largest mass it can swing at 14.2m/s in a circle of radius 0.425
    15·1 answer
  • What is not the same as 2.97
    6·1 answer
  • What is the best way to make a supersaturated solution?
    5·1 answer
  • For the following reaction, 5.20 grams of propane (C3H8) are allowed to react with 22.5 grams of oxygen gas. propane (C3H8) (g)
    12·1 answer
  • When naming compounds, which type of compound uses prefixes to indicate the number of
    7·1 answer
  • Thermal decomposition of magnesium nitrate and magnesium hydroxide <br><br>​
    8·1 answer
  • 1. distance = 10 m<br> time = 2 s<br> What is this object's speed?
    9·2 answers
  • HELP ASAP PLZZZZZZZZ
    15·1 answer
  • True or false Carbohydrates and proteins have the same caloric value per gram
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!