Answer:
Boiling point of the solution is 82.3°C
Explanation:
Boiling point elevation is defined as the increasing of a boiling point of a substance by the addition of a solute. The formula is:
ΔT = K×m×i
<em>Where ΔT is change in temperature (Final T - 80.1°C), K is boiling point elevation constant (2.53°C/m), m is molality of the solution (moles of naphthalene / kg of benzene) and i is Van't Hoff factor (1 for Naphthalene)</em>
Moles of 70.6g of naphthalene are:
70.6g × (1mol / 128.16g) = 0.5509 moles
Kg of 722mL of benzene are:
722mL × (0.877g / mL) × (1kg / 1000g) = 0.633kg of benzene
Replacing in boiling point elevation formula:
(T - 80.1°C) = 2.53°C/m×(0.5509mol / 0.633kg)×1
T - 80.1°C = 2.2°C
T = 80.1°C + 2.2°C
T = 82.3°C
<h3>Boiling point of the solution is 82.3°C</h3>
Answer:
purified is as close to pure at you can get
but filtered is close the difference is the purified is filtered many times when filtered is done once
Explanation:
Solved: An Unknown Element Contains 35 Protons, 36 Electro... | ...
Answer:
Germanium has the larger atomic radius.
