The molarity of Na2CO3 is mathematically given as
M= 0.125 mol/ dm3
Question Parameters:
Generally, the Moles of (Na2CO3) is mathematically given as
Moles(Na2CO3) = 5.3/106
Moles(Na2CO3) = 0.05
Hence
molarity = moles/ volume
Therefore
M=0.05/0.4
M= 0.125 mol/ dm3
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