Answer:
The categorization of strong, weak, and non-electrolytes is detailed below, based on the examples presented in the question.
Explanation:
A strong electrolyte fully dissociates or nearly so in an aqueous environment; typically, strong acids, bases, and salts fall under this category. Examples of strong electrolytes include:
- Hydrochloric acid, HCl
- Calcium hydroxide, Ca(OH)2
- Potassium chloride, KCl
A weak electrolytepartially ionizes in solution; weak acids and bases are primary instances. Examples consist of:
- Methylamine, CH3NH2
- Hydrofluoric acid, HF
A non-electrolytedoes not dissociate in an aqueous medium. Examples of non-electrolytes are:
- Sucrose, C12H22O11
- Methanol, CH3OH
Answer:
The result is "4,241.17 years"
Explanation:
The disintegration rate for C-14 atoms is indicated in 
The dissolution rate of the sample is given by 
The C-14 proportion within the sample can be determined as per 
With a half-life of 5730 years.
Now, we need to compute the number of half-lives (n) that are applicable:
Thus, the age of the sample is represented as = 
Response: Option A) The lattice energy rises as cations become smaller, as demonstrated by LiF and KF.
Clarification: It has been observed that the lattice energy is largely determined by two primary factors regarding ionic solids:
i) The ionic charges - An increase in the charge of the ions corresponds to an increase in lattice energy.
and
ii) The size or radius of the ions - As the ionic size grows, the lattice energy diminishes accordingly.
Therefore, in this context, the latter factor is evident. Thus, it can be concluded that as cation sizes decrease among ionic solids, the lattice energy increases.
Unused chemicals should never be returned to their original containers, as this could lead to contamination. The leftover chemicals should be disposed of in the appropriate waste bin. If there is uncertainty about the procedure, consult your teacher.
84.34 grams of iron (III) chloride is the maximum produced since iron is the limiting reagent, and chlorine gas is in excess.
Explanation:
Balanced equation:
2 Fe + 3 Cl2 → 2 FeCl3
DATA PROVIDED:
iron = atoms
mass of chlorine = 67.2 liters
mass of FeCl3 =?
The number of moles of iron will be calculated as
number of moles = 
number of moles = 
number of moles = 0.52 mol of iron
moles of chlorine gas
number of moles = 
Substituting the values into the equation:
n = 
(molar mass of chlorine gas = 70.96 g/mol)
= 947.01 moles
As iron is the limiting reagent therefore
2 moles of Fe lead to 2 moles of FeCl3
0.52 moles of Fe will yield
= 
0.52 moles of FeCl3 is produced.
To express this in grams:
mass = n x molar mass
= 0.52 x 162.2 (molar mass of FeCl3 is 162.2g/mol)
= 84.34 grams
