What is the percent by mass of sodium in Na2SO4? total mass of element in compound molar mass of compound Use %Element x 100
Given :
A student has a 1 g sample of each of the following compounds: NaCl, KBr, and KCl.
To Find :
The samples in order of increasing number of moles in the sample.
Solution :
Molecular mass of NaCl, KBr, and KCl is 58.5 g/mol , 119 g/mol and
74.5 g/mol respectively .
Moles of NaCl , .
Moles of KBr , .
Moles of KCl , .
The order of moles in increasing order is :
KBr , KCl and NaCl .
Hence , this is the required solution .
Ionic compounds are substances that are made up of ions. There is no ionic formula as carbon and oxygen do not form an ionic compound.
<h3>What are ionic compounds?</h3>
Ionic compounds are compounds that have two differently charged species that bind together. The positive metal species binds to the negative nonmetal species.
Carbon and oxygen both are nonmetals and cannot form a bond as nonmetals gain electrons and metals donates electrons for the bond formation.
Therefore, no ionic compound is present for carbon and oxygen.
Learn more about ionic compounds here:
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He stated that most of the mass of the atom is concentrated in the center of the atom which was against the plum pudding model, so he disproved to that