The molality of a solute is equal to the moles of solute per kg of solvent. We are given the mole fraction of I₂ in CH₂Cl₂ is <em>X</em> = 0.115. If we can an arbitrary sample of 1 mole of solution, we will have:
0.115 mol I₂
1 - 0.115 = 0.885 mol CH₂Cl₂
We need moles of solute, which we have, and must convert our moles of solvent to kg:
0.885 mol x 84.93 g/mol = 75.2 g CH₂Cl₂ x 1 kg/1000g = 0.0752 kg CH₂Cl₂
We can now calculate the molality:
m = 0.115 mol I₂/0.0752 kg CH₂Cl₂
m = 1.53 mol I₂/kg CH₂Cl₂
The molality of the iodine solution is 1.53.
Explanation:
A polymer forms because the hydrocarbon joins with itself in a polymerization reaction.
The answer:
<span>The equation of its dissolution in water is: AgNO3 → Ag + (aq) + NO3- (aq)
and </span>AgNO3 → Ag + (aq) + NO3- (aq)
1 mol 1mol 1mol
? -------- 0.854mo
so for finding the value, it is sufficients to complute 1 x 0.854 mol =0.854 mol
so, 0.854 mol is required for the reaction to form 0.854 mol of Ag
I don't think it wont be a big explosion
The answer is strontium dihydrogen phosphate
That is strontium dihydrogen phosphate, is the compound containing the most hydrogen atoms per molecule or formula unit.
The formulas of the following compounds are as follows:
Hydrogen selenide H₂Se
Ammonium bromide NH₃Br
Strontium dihydrogen phosphate Sr(H₂PO4)₂
Sodium bicarbonate NaHCO₃
As it can be seen from the formula of strontium dihydrogen phosphate Sr(H₂PO4)₂
, that it contains the most hydrogen atoms per molecule or formula unit.