The mass percent of sulfurous acid in the new solution : 38.9%
<h3>Further explanation</h3><em>In a container you have 800 g of a 35% by mass solution of sulfurous acid, from which 80 ml of water evaporates. What is the mass percent of sulfurous acid in the new solution? data: density of water is 1g / ml.</em>
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solution 1
composition :
solution 2(new solution)
composition :
Explanation:
As a neutral lithium atom contains 3 protons and its elemental charge is given as . Hence, we will calculate its number of moles as follows.
Moles =
=
= 100 mol
According to mole concept, there are atoms present in 1 mole. So, in 100 mol we will calculate the number of atoms as follows.
No. of atoms =
= atoms
Since, it is given that charge on 1 atom is as follows.
=
Therefore, charge present on atoms will be calculated as follows.
Thus, we can conclude that a positive charge of is in 0.7 kg of lithium.