Question

Why molar mass oxalic acid is taken as 126 grams and not 90 grams

Answer 1

Answer:

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Answer 2

Answer:

Initial Molarity of Oxalic Acid = 1M

Final Molarity of Oxalic Acid = 0.5M

We know, Molarity = Volume/Moles

Moles = Molarity×Volume

Hence, Initial number of molesc=> m= 1M×50mL => m = 50m−moles = 50×10 −3 Moles

Similarly,

Final number of moles (mf) = 0.5M×50mL

=> m f = 25m−moles = 25×10 −3 Moles

Moles of oxalic acid adsorbed =(50−25) m-moles =25 m-moles

Moles of oxalic acid adsorbed per gram Carbon =

0.5g/25×10 −3 Moles =0.05 moles

Mass of oxalic acid adsorbed = 0.05×126 =6.30g

Explanation:

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