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
zvonat [6]
3 years ago
12

Calculate the ph of a 0.10 m solution of hypochlorous acid

Chemistry
1 answer:
melomori [17]3 years ago
8 0

Answer:

1

Explanation:

Firstly we need to know the chemical formula of hypochlorous acid. This is HOCl.

The ionization equation is as follows:

HOCl ⇌ ClO− + H

This means in every one mole of the acid, exactly one mole of hydrogen ions is produced. This also means that there is exactly 0.1M of H+ in 0.1M of the acid.

We now go on to calculate the pH of the acid solution. By definition, the pH is the negative logarithm to base 10 of the hydrogen ion concentration of the acid.

Mathematically: pH = -log[H+]

Now we know that [H+] = 0.1M

pH = -log[0.1]

pH = 1

The pH of 0.1M hypochlorous acid is 1

You might be interested in
Which type of statement provides a possible answer to a scientific question
Morgarella [4.7K]

Answer:

A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.

Explanation:

4 0
2 years ago
Match the following chemical reactions:
S_A_V [24]

Answer:

Synthesis - 4

reversible- 2

exchange- 1

decomposition-3

Explanation:

In synthesis reaction two or more components combines to form a single product. example 2H2+O2⇒2H2O

In reversible reaction two reactants combine to form two products . The products then reacts and forms back the reactants. example N2 +3H2 ⇒2NH3

In exchange reaction there is an alternation of ions of reactants to form new products. AB+CD ⇒AC + BD

In decomposition reaction, molecules of a compound break down by the action of heat or light or catalyst. example CaCO3 ⇒CaO +CO2

3 0
2 years ago
A monoprotic weak acid when dissolved in water is 0.66% dissociated and produces a solution with a pH of 3.04. Calculate the Ka
raketka [301]

Answer:

Ka = 6.02x10⁻⁶

Explanation:

The equilibrium that takes place is:

  • HA ⇄ H⁺ + A⁻
  • Ka = [H⁺][A⁻]/[HA]

We <u>calculate [H⁺] from the pH</u>:

  • pH = -log[H⁺]
  • [H⁺] = 10^{-pH}
  • [H⁺] = 9.12x10⁻⁴ M

Keep in mind that [H⁺]=[A⁻].

As for [HA], we know the acid is 0.66% dissociated, in other words:

  • [HA] * 0.66/100 = [H⁺]

We <u>calculate [HA]</u>:

  • [HA] = 0.138 M

Finally we <u>calculate the Ka</u>:

  • Ka = \frac{[9.12x10^{-4}]*[9.12x10^{-4}]}{[0.138]} = 6.02x10⁻⁶
3 0
2 years ago
Look at the diagram below.
Kazeer [188]

Answer:

3rd statment

Explanation:

ray 1 and 2 are same vertical line

5 0
3 years ago
Read 2 more answers
Physical Science pre-Test 2020-2021
poizon [28]

Answer:

exothermic I think

Explanation:

IM TWKIGN THE TEST

4 0
3 years ago
Other questions:
  • “All compounds containing H atoms are acids, and all compounds containing OH groups are bases.” Do you agree? Give examples.
    8·1 answer
  • The amount of heat energy required to raise the temperature of a unit mass of a material one degree is its heat capacity.
    8·1 answer
  • The kilogram is the standard unit of
    15·1 answer
  • Which of the following does NOT show the law of conservation of mass?
    5·2 answers
  • 3.
    5·2 answers
  • A balloon contains 0.5 L of air at 101.5 kPa. You squeeze it to a volume of 0.25 L. What is the pressure of air inside the ballo
    6·1 answer
  • What is the molecular geometry of a molecule made of two atoms that share one pair of electrons and have no lone electrons pairs
    8·1 answer
  • If all three metals were exposed to extremely high temperatures, which would be the last to melt? (copper, gold, mercury)
    9·2 answers
  • What happens when two plates move alongside each other?
    6·1 answer
  • Chemistry mixes 108 g of O2, with 232 L of C3Hg at STP. How many grams of H2O will be produced? The balanced equation for this r
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!