Answer:True
Explanation:
A ideal solution is a solution which obeys Raoults law on almost every concentration and temperature range.
Ideal solutions are formed by mixing those solute and solvent which has identical molecular properties.
Lets take A be the solute and B be the solvent so to form a ideal solution from these components the solute-solute(A-A) molecular interaction and solvent -solvent (B-B) molecular interactions must be identical with the solute solvent interaction(A-B).
The solute-solute molecular interaction ,solute-solvent molecular interaction and solvent-solvent molecular interaction must be equal in order to form a ideal solution.
The enthalpy of mixing and volume of mixing of ideal solution is zero.
enthalpy of mixing is the amount of energy released on mixing a solute and solvent and in case of ideal solutions it is zero.
Volume of mixing is change in volume on mixing a solute and solvent.
Answer:
Volume is directly proportional to absolute temperature.
Explanation:
Answer:
The molar concentration of the final solution is 1.71
Explanation:
Molarity is a way of expressing the concentration of solutions and indicates the number of moles of solute dissolved per liter of solution.
The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution.:
Molarity is expressed in units ().
Then, the number of moles of solute can be calculated as:
number of moles of solute= molarity* volume
So, in this case, the final concentration can be calculated as:
where, being 65 mL=0.065 L, 125 mL=0.125 L and 190 mL=0.190 L (because 1000 mL= 1 L):
- Total number of moles of solute= 0.065 L*0.513 + 0.125 L*2.33 = 0.033345 moles + 0.29125 moles= 0.324595 moles
- Total volume= 65 mL + 125 mL= 190 mL= 0.190 L
Replacing:
Final molarity ≅ 1.71
<u><em>The molar concentration of the final solution is 1.71 </em></u><u><em></em></u>
Answer:
Often a chemist needs to heat materials. The Bunsen Burner is one of the most efficient ways of doing this.
Explanation:
Through hypothesis and experiments