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100 g of 25% (w/w) sodium hydroxide is p...

100 g of `25%` (w/w) sodium hydroxide is prepared in a laboratory. If the density of water is 0.9 g/cc at room temperature, calculate the volume of water taken

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(i) determination of the mass of sodium hydroxide present in the solution
(ii) calculation of the mass of water taken
(iii) calculation of molarity
(iv) calculation of volume of water taken from the density given
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