The molar mass of water is the molecular weight in grams per 1 mole.
18gH2O/1mole
100g × 1mole/18g = 50/9 moles = 5.67 moles H2O
Answer:
∇T = -32°C
Explanation:
T1 = 45°C
T2 = 13°C
∇T =?
∇T = change in temperature = final temperature - initial temperature
∇T = T2 - T1
∇T = 13 - 45
∇T = -32°C
The change in temperature is -32°C
Answer:
D
Explanation:
We have to bear in mind that the acid is a weak acid. A weak acid does not dissociate completely in solution. We will have more concentration of undissociated acid than A^- and H3O^+ and OH^- in the system at equilibrium.
Being a weak acid, there is maximum concentration of water molecules followed by that of undissiociated acid.
Hence, for this solution, the concentration of ions in solution follows the order;
[H2O] > [HA] > [A-] ~ [H3O ] > [OH-]