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एक बिलयन के 500 mL में 4gNaOH है। इसकी मोलरता ज्ञात कीजिए।

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एक बिलयन के 500 mL में 4gNaOH है। इसकी मोलरता ज्ञात कीजिए।

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मोलरता (M) = 

मोलरता

M = \(\frac{4g \times 1000}{40g.mol^{-1} \times500 mL}\)

= 0.2M = 0.2 mol L-1

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