Period 3 contains the elements sodium to argon. This question asks about the chemistry of each of the Period 3 elements

Period 3 contains the elements sodium to argon. This question asks about the chemistry of each of
the Period 3 elements or their compounds.
(a) Sodium nitrate is a white crystalline solid. When heated it melts and the following reaction
occurs.
2NaNO3(l) → 2NaNO2(l) + O2(g)
A 3.40 g sample of sodium nitrate is heated.
Calculate the
• number of moles of NaNO3 used,

Leave a Reply