"0.538 g" would be the mass of the water.
Given values are:
Hydrated salt,
Anhydrous salt,
→ The mass of water lost by the salt will be:
= 
By substituting the given values, we get\
= 
= 
Thus the above answer is appropriate.
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An electron has a negative charge of one
An neutron has no charge (hence, neutral)
An proton has a positive charge of one
~
Acetylene has a chemical formula which can be written as:
C2H2
We can see that there are two positive ions, H+. Now what
deprotonation means is that the H+ is removed from acetylene to form acetylene
ion and water. In this case, I believe that the answer would be:
<span>LiOCH3</span>