Answer : The formula that represent hydrogen ions in an aqueous solution is,
Explanation :
As we know that the formula of water is, .
In an aqueous solution, it dissociates to give hydrogen ion and hydroxide ion.
The dissociation reaction is:
The formula of hydrogen ion is,
The formula of hydroxide ion is,
Hence, the formula that represent hydrogen ions in an aqueous solution is,
Answer: The molality of solution is 17.6 mole/kg
Explanation:
Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.
where,
n = moles of solute
= weight of solvent in kg
moles of acetone (solute) = 0.241
moles of water (solvent )= (1-0.241) = 0.759
mass of water (solvent )=
Now put all the given values in the formula of molality, we get
Therefore, the molality of solution is 17.6 mole/kg