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
Basile [38]
3 years ago
5

Please help. thank youuuu

Chemistry
1 answer:
Dmitry [639]3 years ago
6 0

Answer:

'See Explanation

Explanation:

Determine the [OH−] , pH, and pOH of a solution with a [H+] of 9.5×10−13 M at 25 °C.

Given [H⁺] = 9.5 x 10⁻¹³M => [H⁺][OH⁻] = 1.0 x 10⁻¹⁴ => [OH⁻] = 1.0 x 10⁻¹⁴/9.5 x 10⁻¹³ = 0.0105M

pH = -log[H⁺] = -log(9.5 x 10⁻¹³) = - (-1202) = 12.02.

pOH = -log[OH⁻] = -log(0.0105) = -(-1.98) = 1.98

Now you use the same sequence in the remaining problems.

You might be interested in
How many reactant molecules and product gas molecules are in this equation?
Mice21 [21]

Answer:

N₂  = 6.022 × 10²³ molecules

H₂ = 18.066 × 10²³ molecules

NH₃ = 12.044 × 10²³ molecules

Explanation:

Chemical equation;

N₂ + 3H₂     →  2NH₃

It can be seen that there are one mole of nitrogen three mole of hydrogen and two moles of ammonia are present in this equation. The number of molecules of reactant and product would be calculated by using Avogadro number.

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

Number of molecules of nitrogen gas:

1 mol = 6.022 × 10²³ molecules

Number of molecules of hydrogen:

3 mol × 6.022 × 10²³ molecules/ 1 mol

18.066 × 10²³ molecules

Number of molecules of ammonia:

2 mol × 6.022 × 10²³ molecules/ 1 mol

12.044 × 10²³ molecules

6 0
4 years ago
What is the lowest value of n that allows g orbital to exit​
xz_007 [3.2K]
Answer:The lowest value of n that allows g orbitals to exist is 5.
5 0
4 years ago
How many grams of potassium cyanide would be needed to make a saturated solution for the volumes indicated below? The solubility
lesya692 [45]
You will need 75.0ml grams of potassium cyanide
6 0
3 years ago
The temperature of a freezer started at 18şc. After cooling for a few hours, the freezer had a temperature of –12şc. What is the
andre [41]
20 minus 2 plus 1 equals negative -2000000
8 0
3 years ago
What occurs when the vapor pressure of a lquid is equal to the external atmospheric pressure
AlekseyPX

Answer:

The change from a liquid phase to a gaseous phase occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid.

Explanation:

Boiling is a physical change and molecules are not chemically altered during the process.

8 0
3 years ago
Other questions:
  • What happens when you mix soil with water?
    13·2 answers
  • You are walking in a clear-cut section of forest a few days after a heavy rainstorm. A nearby stream is very muddy and has many
    10·1 answer
  • If 10.7 grams of NH4Cl is dissolved in enough water to make 800 mL of solution,what will be it's molarity
    5·1 answer
  • What happens to elements when they gain energy
    13·2 answers
  • A cube with a mass of 250.0 g has sides measuring 5.00 cm each. What is the density of this cube in grams per cubic centimeter?
    6·1 answer
  • A 10 kg bicycle is rolling down a hill at 5 m/s, what is its momentum?
    11·1 answer
  • Please help me vote you brainiest
    10·1 answer
  • The mass of an empty crucible was 17.556g. The mass of the crucible and a hydrate was 21.018 g. The mass of the crucible and anh
    12·1 answer
  • What is the voltage this voltmeter is measuring? Be sure your answer has a reasonable number of decimal place
    7·1 answer
  • Consider the following balanced redox reaction:2CrO₂⁻(aq) + 2H₂O(l) + 6ClO⁻(aq) →
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!