Question

1. Based on the Law of Conservation of Mass, if

100g of sodium metal reacts with 25g of
chlorine gas, what will be the total mass of the
product, sodium chloride, created in the
chemical reaction?
2 Na Cl2
2NaCl
100gm + 25gm
+
?

Answer 1

`\boxed{\sf {Na\atop Sodium}+{Cl\atop Chlorine}\longrightarrow {NaCl\atop Sodium Chloride}}`

• Na=100g
• Cl=25g.

Mass of reactants :-

`\\ \sf\longmapsto Na+Cl`

`\\ \sf\longmapsto 100+25`

`\\ \sf\longmapsto 125g`

Mass of NaCl=125g