Answer: b: C12H22O11
Explanation: have a good day!
The balanced chemical equation for the reaction is:
2AgNO3 + CaCl2 --> 2AgCl + Ca(NO3)2
Moles of CaCl2 reacted = conc * vol = 0.100 * 3.00 = 0.300 moles
Reaction ratio between CaCl2 and AgNO3 is 1:2. Hence moles of AgNO3 = 0.300 * 2 = 0.600 moles
Volume of AgNO3 = moles / conc = 0.600 / 0.100 = 6.00L
Of course the easy shortcut is that because both solutions are the same concentration you could just multiply 3.00 * 2, however this explanation should reason it out more clearly. Hope I helped you :)
is having lowest oxidation number of sulphur in teh options given. The oxidation number is -2.
The correct option is E.
Explanation:
have oxidation number of -2, which is lowest in all the options given.
In the given examples 
will have oxidation number zero because it is in elemental form. In the rules for oxidation number it is given that any element in free state has its oxidation number zero.
All other options are in compound form as:
S
= oxidation number is +4. It is calculated as oxygen having O.N of -2,
The charge on the atom is -2, so sum of the oxidation numbers of all the elements should be equal to -2.
x+3(-2)= -2
x = 4
S
= The charge on the atom is -2, so sum of the oxidation numbers of all the elements should be equal to -2.
x +4(-2) = -2
x = +6
The charge on the atom is -2, so sum of the oxidation numbers of all the elements should be equal to -2.
2x + 3(-2) = -2
2x = 4
x = 2
= oxidation number is -2 as the charge on ion in equal to its oxidation number.
Answer:
Check below
Explanation:
Ksp of AgCl = 1.8*10^-10
Ksp = [Ag+] [Cl-]
[Ag+] [Cl-] = 1.8*10^-10
Because [Ag+] = [Cl-] ,
[Ag+]² = 1.8*10^-10
[Ag+] = √((1.8*10^-10)_
[Ag+] = 1.35*10^-5M
That is [Ag+] in the original saturated solution.
NaCl is added to the saturated AgCl solution:
If Cl- = 0.72M , equation becomes
[Ag+] [ 0.72] = 1.8*10^-10
[Ag+] = (1.8*10^-10)/0.72
[Ag+] = 2.5*10^-10M
% Ag+ remaining in solution =(2.5*10^-10) / { (1.35*10^-5) * 100
% Ag+ remaining = 1.85*10^-3% or 0.00185%
Note that an approximation has been made here: [Cl-] is 0.72M + the unprecipitated Cl- from the AgCl. Because this latter is an infinitely small amount compared to 0.72M , it is quite safe to make this approximation without any effect on the answer.
220
Answer:
Temperature is a measure of the average kinetic energy of the particles in an object. When temperature increases, the motion of these particles also increases. (That should give you the answer if you read closely first sentence)
