Which of the following correctly represents 3 | vedclass

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(A) The molar mass of water $(H_2O)$ is $(2 	imes 1) + 16 = 18 \,g/mol$.Number of moles = $\frac{	ext{Given mass}}{	ext{Molar mass}} = \frac{360 \,

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$(ii)$ and $(iv)$

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(A) The molar mass of water $(H_2O)$ is $(2 	imes 1) + 16 = 18 \,g/mol$.Number of moles = $\frac{	ext{Given mass}}{	ext{Molar mass}} = \frac{360 \,g}{18 \,g/mol} = 20 \,moles$.Thus,statement $(ii)$ is correct.Number of molecules = $	ext{Number of moles} 	imes 	ext{Avogadro's number} (N_A)$.Number of molecules = $20 	imes 6.022 	imes 10^{23} = 1.2044 	imes 10^{25}$ molecules.Thus,statement $(iv)$ is correct.Therefore,the correct options are $(ii)$ and $(iv)$.

Which of the following correctly represents $360 \,g$ of water?

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