0.965 * 104C
4.820 * 104C
9.650 * 104C
48.200 * 104C
Correct answer is C
1 mol → 96500 * 2
0.5 mol → X
X = 0.5 * 96500 * 2
= 9.650 * 104C
2e-
3e-
5e-
7e-
Correct answer is C
We want the number of charges on both sides of the equation to be the same.
i.e. number of charges on the reactant side = the number of charges on the product side.
-1 + 8 = 2
7 = 2
difference in number of charges = 5, hence Y = 5.
The pOH of a solution of 0.25 mol dm-3 of hydrochloric acid is
12.40
13.40
14.40
14.60
Correct answer is B
pOH = -log [2.5 * 10-1]
= -log[-0.3979 + 1]
= 13.40
In which order are the following salts sensitive to light?
Agl > AgCl > AgBr
AgCl > Agl > AgBr
AgBr > AgCl > Agl
AgCl > AgBr > Agl
Correct answer is C
light sensitivities of the silver halides: AgBr > AgCl > AgI. Notably; AgBr is used in production of photographic chemicals.
HCL(aq) + H2O(l) H3O+(aq) + Cl-(aq)
In the reaction above, Cl-(aq) is the
conjugate acid
acid
conjugate base
base
Correct answer is C
No explanation has been provided for this answer.