Calculate the volume in milliliters of a 1.4M sodium carbonate solution that contains 100.g of sodium carbonate Na2CO3. Round your answer to 2 significant digits.

615ml

Explanation:

Vol(ml) = (gms solute)/[(Molar Answer => Conc)(formula Wt solute))] = (100g)/{(1.4M)(116g/mol)} = 0.615L = 615ml.

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-