The pH of a solution is 2.0. Which statement is correct? A)The pOH of the solution is 12.0. B)The concentration of OH- ions is 1.0 x 10-2 M. C)The concentration of H+ ions is 100.0 M. D)The pOH of the solution is 7.
Answers
The statement which is correct is the one stating that the pOH of solution is 12.0.
What is pOH?
pOH is defined as the measure of determining the alkalinity or basicity of the solution.It is also used for the determination of the concentration of the hydroxyl ions which are present in the solution.
Mathematically, it can be defined as the negative logarithm of the hydroxyl ion concentration present in a solution,that is,
pOH= -log(OH)
It can be used for the purpose of an indicator for determining the alkalinity of the substance where the pH values lies above 7.It also finds application in determining the electrical conductivity as well.It is related to the pH by the equation,
pH+pOH=14
For determining the amount of corrosion ,pOH can be used as an indicator for an electrolyte's conductivity.Hence, it can be concluded that higher the pOH ,higher the alkalinity and higher is the amount of corrosion.
Learn more about pOH ,here:
#SPJ5
Related Questions
Which change most likely occurs when the kinetic energy of water vapor decreases during condensation?
The melting of gold is a physical change.why?
Which terms are used to identify pure substances?(1) an element and a mixture(2) an element and a compound(3) a solution and a mixture(4) a solution and a compound
What are 3 signs that a chemical reaction is happening, what tells you that this is definitely a chemical reaction?
Answers
Answer:
terremotos
Explanation:
Answers
Answer:
5 significant figures
Explanation:
Answers
C₁ * V₁ = C₂ * V₂
6.0 * 455 = C₂ * 2500
2730 = C₂ * 2500
C₂ = 2730 / 2500
C₂ = 1.092 M
hope this helps!
29.81 g/mol
48.81 g/mol
67.81 g/mol
Answers
The molar mass of BF3 is 67.81 g/mol
Explanation
- Molar mass is the mass of all atoms in a molecule in gram per mole.
- molar mass of a molecule is calculated by adding atomic mass of constituent atom
- use the periodic table to determine the atomic mass of each element in the molecule.
that is;
atomic mass of B = 10.81 g/mol
atomic mass of F = 19 g/mol
- since there 3 atoms of F in BF3 the atomic massof F in BF3= 3 x19 = 57 g/mol
- total molar mass of BF3 = 10.81 g/mol + 57 g/mol = 67.81 g/mol
67.81 g/mol is the molar mass of BF . Therefore, the correct option is option D among all the given options.
The ratio among the mass with the quantity of substance (measured within moles) in any sample of a compound of chemicals is known as the molar mass (M) in chemistry. The molar mass of a material is a bulk attribute rather than a molecular one. The compound's molecular weight is an average over numerous samples, which frequently have different masses because of isotopes. A terrestrial average or a function of the relative proportion of the isotopes of the component atoms on Earth, the molar mass is most frequently calculated using the standard atomic weights.
atomic mass of B = 10.81 g/mol
atomic mass of F = 19 g/mol
atomic massof F in BF= 3 x19 = 57 g/mol
total molar mass of BF = 10.81 g/mol + 57 g/mol = 67.81 g/mol
Therefore, the correct option is option D.
To know more about molar mass, here:
#SPJ6
Answers
Answer:
The second choice i think
Explanation:
Hope it helps
Example 1:
Type of Change:
Evidence:
Answers
Answer:
Example 1. One change I observed was when cooking, I needed to boil water. The water was later evaporated due to the increase of heat from the stove below the pot. Heat traveled and transferred from the stove to the pot then the water. This change is from liquid to gas.
Example 2. I was mixing sugar into my tea, the sugar dissolved into the tea. This is an example of dissolving a solid into a liquid. The tea took the properties of the sugar and turned the drink sweet.
Extra, taking a hot shower and steam leaves the shower. This change is of evaporation.
Explanation:
Hope this helps, even though it was late! <3 :)