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
zhenek [66]
3 years ago
14

The (OH) of a given solution =1.00x10-9M. what is this solution s pOH?

Chemistry
2 answers:
german3 years ago
8 0

Answer:

9

Explanation:

Given parameters:

Concentration of OH⁻ [OH]= 1 x 10⁻⁹M

Solution:

To find the pOH of a solution can be found using the expression below:

                   pOH = -log₁₀[OH]

          [OH] = concentration of the hydroxyl ions

       pOH = -log₁₀(1 x 10⁻⁹) = - x -9 = 9

Amiraneli [1.4K]3 years ago
6 0

<u>Answer:</u>

<em>The soultion of pOH=9</em>

<em></em>

<u>Explanation:</u>

We can determine the acidity or the basicity of the solution using the pOH value.

The solution is acidic if the pOH value ranges from 7.1 to 14

The solution is Basic if the pOH value ranges from 0 to 6.9  

The solution is neutral if the pOH value is 7.

pOH is defined as the negative logarithm of the Hydroxide ion concentration, that’s why the formula to find pOH is given by  

pOH=-log[OH^-]

pOH=-log[1.00\times10^{-9}M]

=-[-9]

pOH=9

(Answer)

<u>Please note :  </u>

A Base is a substance which produces one or more hydroxyl ion or  hydroxide ion (OH-) in aqueous solution.

Examples

NaOH(s)>Na^+ (aq) + OH^- (aq)\\\\KOH(s)>K^+ (aq) +OH^- (aq)\\\\Ca(OH)_2 (s)>Ca^{2+} (aq)  +2OH^{- }(aq)\\\\Al(OH)_3 (s)> Al^{3+} (aq)+ 3OH^- (aq)

<u>Please note: </u>

(aq) stands for aqueous which means in the presence of water that is,water   acts as a solvent

So, on adding a base to the water increase in [OH^-] will take place and this will decrease the Hydrogen ion concentration  

Pure water contains [H^+ ]=[OH^- ]

if the solution is acidic [H^+ ]>[OH^- ]

if the solution is Basic [H^+ ]

You might be interested in
What is the empirical formula of a compound consisting of 29.6% oxygen and 70.4% fluorine by mass?
Rainbow [258]
O1Fl2

1. Assume an 100g sample, so the percentage will stay the same

2. Covert each element into their molar mass
29.6/16.00=1.8 mols of O
70.4/19.00=3.7 mols of Fl

3. Divide both by the smallest value of mol
1.8/1.8=1 O
3.7/1.8=2 Fl

4. Write the empirical formula:
O1Fl2
3 0
3 years ago
Read 2 more answers
How many moles of NaCl are present in 2.50 L of a 0.070 M solution?
posledela

Given :

Volume of NaCl solution 2.5 L .

Molarity of NaCl solution is 0.070 M .

To Find :

How many moles are present in the solution.

Solution :

Let, n be the number of moles.

We know, molarity is given by :

M = \dfrac{n}{V(in\ L)}

So,

n = M \times V\\\\n = 0.070\times 2.5 \\\\n = 0.175\ moles

Therefore, number of moles of NaCl is 0.175 moles.

6 0
3 years ago
Choose the correct statement. The cathode is the electrode where the oxidation takes place. Both oxidation and reduction may tak
gregori [183]

Answer:

The cathode is the electrode where the reduction takes place.

Explanation:

Cell has three components:

an electrolyte and two electrodes which is a cathode and an anode.

Electrolyte is usually solution of the water or other solvents in which the ions are dissolved.

<u>In electrolytic cell:</u>

Negatively charged electrode is the cathode where the process of reduction takes place.

Positively charged electrode is the anode where the process of oxidation takes place.

<u>In galvanic cell:</u>

Positively charged electrode is the cathode where the process of reduction takes place.

Negatively charged electrode is the anode where the process of oxidation takes place.

<u>So, the correct answer is - The cathode is the electrode where the reduction takes place.</u>

6 0
3 years ago
Dose mitochondria make necessary chemicals for the cell
Bezzdna [24]
Yes mitochondria does make necrssary chemicals for the cell therefore the answer to your question is yes
5 0
3 years ago
Alcano con 1 carbono?
never [62]

creo esto te va a ayudar

5 0
2 years ago
Other questions:
  • The side chain of ________ has a pKa in the physiological pH range and is therefore often involved in proton transfer during enz
    6·1 answer
  • How do you find moles
    5·2 answers
  • Why does water dissolve sugar ? Explain your answer !
    15·1 answer
  • Does a dry cell have local action?​
    7·1 answer
  • A 0 point 5 kg arrow was shot at a target. The arrow accelerated at 200 meters per second squared. What was the net force on the
    9·1 answer
  • What is the mass of 3.2 moles of Sulfur?​
    9·1 answer
  • _____________is when the body is in an erect postion with feet slightly apart and your palms are facing forward with the thumbs
    14·1 answer
  • Which statement best describes a chemical change?
    7·2 answers
  • What is a control group?
    9·2 answers
  • The picture below shows water ripples interacting.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!