Question
A 100 mL solution having 0.01 moles of NaOH dissolved in
it. The pH of the solution is:Solution
To find the pH of the solution, we first need to calculate the concentration of hydroxide ions ( OH-) in the solution, since NaOH dissociates completely in water to produce OH- ions. Given that the solution contains 0.01 moles of NaOH dissolved in 100 mL of solution, we can calculate the molarity (M) of NaOH: M= moles of solute/ volume of solution in liters So, M = 0.01 moles /0.1 L= 0.1 М. Since NaOH dissociates completely, the concentration of OH ions is equal to the molarity of NaOH: [OH-] = 0.1 M Now, to find the pOH of the solution, we use the formula: POH = - log [OH-] POH = log(0.1) POH = -(-1) POH = 1 Finally, we can find the pH using the relation: pH + pOH = 14 pH = 14-pОН pH = 14-1 pH = 13
Statements-
1. All phones are wires.
2. All switches are wires.
3. Some wires are poles.
4. Some poles are not phones.
<...- Statements:
Only Rain is Cloud
Some Star is Rainbow
A few Rainbow is Rain
Conclusions:
I. All Star can be Rain
... In the question below, three statements are given followed by the conclusions. You have to take the given statements to be true even if they seem to b...
Statements : Some fathers are mother.
All mothers are son.
...Statements: Some giraffe are zebra.
All zebra are kangaroo.
Conclusions: I. Some gir...
Statements:
Some guests are hosts
All hosts are invitations
No invitation is a decoration
Conclusion :
I. Some gu...
Statements:All papers are pencils.
No pencil is an eraser.
Conclusions:I. No paper is a pencil.
II. No paper is an eraser.
...Statements:
Only mango is apple.
No orange is a Peach.
Some Peaches are guavas.
Some guavas are mangoes.
Conclusio...
Statements:
Some planet are constellation.
Only constellation are universe.
15% constellation are star.
Conclusions:
...
In the questions given below, there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be...
