<span>B) Boiling point Elevation states a solution typically has a measurably higher than a pure solvent . So would be B. </span>
If theres a mixture of components we can calculate the mole fraction
mole fraction can be calculated as follows
mole fraction of component =

number of moles of ethanol - 3.00 mol
total number of moles in mixture - 3.00 + 5.00 = 8.00 mol
mole fraction of ethanol =

mole fraction of ethanol is 0.375
Answer:
So, the elements with similar properties to sodium (Na) are all of those elements in the same Group.
Explanation:
The ones "most" similar would be the ones closest in mass as well. Those would be Lithium (Li) and Potassium (K).
Answer:
The answer to your question is: pH = 13.97
Explanation:
Data
NaOH = 21.5 g
Volume = 500 ml
pH = ?
Formula
Molarity = moles / volume (l)
pOH = -log [OH⁺]
pH = 14 - pOH
Moles of NaOH
MM NaOH = 23 + 16 + 1
= 40 g
40 g of NaOH ----------------- 1 mol
21.5 g of NaOH -------------- x
x = 0.538 moles
Molarity = 0.538/ 0.5
= 1.075 M
pOH = -log [1.075]
pOH = 0.0318
pH = 14 - 0.0318
pH = 13.97