How to prepare 70 ml 0.05 Molar oxalic Acid solution?
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Answer:
Dissolve 0.0315g of oxalic acid in 70ml solvent
Explanation:
Molarity = no of moles/ Volume in litre
Molarity = 0.05
Volume = 70ml =0 .07L
Implies of moles = 0.07x 0.05 = 0.0035
No of moles = mass of oxalic acid ÷ molecular weight of oxalic acid
Implies amount of oxalic acid = 0.0035×Molecular weight = 0.0035×90= 0.0315g
Hence dissolve 0.0315g of oxalic acid in 70ml solvent
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