Calculate the volume of a solution naoh c0.2 moll necessary, Ask an Expert

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There are 5 questions that i don't know how to do it, please help!

1)How many moles of K+ are in 1 litre of c=0.3 mol/l of K2SO4?

2)Calculate the concentration of NaCl that is isotonic with phisiological glucose solution.

3)Calculate the volume of a solution NaOH c=0.2 mol/l necessary to neutralize v=200 ml of solution HCl c=0.1 mol/l.

4)What volume of NaOH C0.01 mol/l do you add to neutralize a 200 ml of acetic acid solution c=0.02 mol/l.

5)A 10% solution has m=80g. How many grams of water do you have to add to obtain a 4% solution?

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Category:- Chemistry
Reference No.:- M9458585

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