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Asked by Sarah

It takes 28.0 cm3 of potassium hydroxide to neutralise 25.00 cm3 of nitric acid at a concentration of 0.50 mol/dm3 HNO3 + KOH —> KNO3 + H2O Calculate the concentration of potassium hydroxide?

I will teach the method rather just giving out the answer. So firstly, calculate the volume of potassium hydroxide= 28/1000=0.0280dm3 Using in the below formulae: Concentration in mol/dm3 = Amount of solute in mol/ volume in dm3 Here we need to find the concentration ie., the amount of solute. Using the given values we can easily substitute and find the concentration for potassium hydroxide.

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Karan Mahendra Jain

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