A solution is prepared by dissolving \( 1.0 \mathrm{~g} \) of \( \mathrm{NaOH} \) in water to ge...

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A solution is prepared by dissolving \( 1.0 \mathrm{~g} \) of \( \mathrm{NaOH} \) in water to get \( 250 \mathrm{ml} \) of solution. Calculate its molarity.
(1) \( 2.5 \)
(2) \( 4.5 \)
(3) \( 5.0 \)
(4) \( 0.1 \)
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