bobboby bobboby

18-05-2018
Chemistry

contestada

how many grams of NaOH are needed to make 500 mL of a 2.5 M NaOH solution

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kenmyna kenmyna

27-05-2018

The number of grams of NaOH that are needed to make 500 ml of 2.5 M NaOH solution

calculate the number of moles =molarity x volume/1000

= 2.5 x 500/1000 = 1.25 moles

mass = moles x molar mass of NaOH

= 1.25 x40= 50 grams of NaOH

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