Answer:
7
Explanation:
Assume we have 1 L of each solution.
Solution 1
Solution 2
pH = 12
pOH = 14.00 - pOH = 14.00 - 12 = 2.0
3. pH after mixing
H⁺ + OH⁻ ⟶ H₂O
I/mol: 10⁻² 10⁻²
C/mol: -10⁻² -10⁻²
E/mol: 0 0
The H⁺ and OH⁻ have neutralized each other. The pH will be that of pure water.
pH = 7
Explanation:
Formula for black body radiation is as follows.
where, P = power emitted
A = surface area of black body
= Stephen's constant =
As area is given as 1.0 . Converting it into meters as follows.
(as 1 m = 100 cm)
=
It is given that P = 201 watts. Hence,
=
=
T =
= 8862.5 K
Thus, we can conclude that the temperature of the surface is 8862.5 K.
The phrase that describes a characteristic of an Arrhenius base is that Arrhenius base add hydroxide ions to the solution ( answer C)
<u><em>Explanation</em></u>
Arrhenius base is a substance that increases the concentration of OH- in aqueous solution.
The Common Arrhenius base are group 1 and 2 hydroxide such as LiOH, NaOH , Ba(OH)2 among others.
for example NaOH dissociate as follows , NaOH → Na+(aq) + OH- (aq)
Bacteria are the living/biotic components in an ecosystem.