Answer:
Mole fraction is 0.2
Explanation:
You have to apply the colligative property about vapour pressure which formula is:
ΔP = P° .Xm
Where ΔP = P° - P
Pressure of vapour from pure solvent (P°) - Pressure of vapour from solution
40 Torr - 32 Torr = 40 Torr . Xm
8 Torr / 40 Torr= 0.2. > Xm
Answer:
pH will always be less than 7
Explanation:
This is because NH3 is a relatively weak base and the resulting Acidic salt on titration might hydrolyse to form a buffer solution
No normal but not unheard of. And I think she might be lying to you about the father if you have only exchanged saliva…
Yes it’s a soluble because the carbonate should dissolve in any strong acid with much effervescence
