How to make up 2M of Ammonia from concentrate?

I have a Concentrate of Ammonia which is 30% and I want to make a 2M solution what do I doHow to make up 2M of Ammonia from concentrate?
concentrated ammonia at 30% (w/w )has a density of 0.895 g/mL, so 1 liter of the 30% concentrate would be 895 grams ( 1000 mL x 0.895g/mL )of which 30% is NH3. Sooo 895 x 0.3 = 268.5 grams of NH3 per liter. The molar mass of NH3 is 17grams/mole soo the Molarity of concentrated ( 30%w/w ) NH3 is 268.5 grams/L /17 grams/mol =15.79moles/L = 15.8 M ; sooo if you wish to make 1 liter of 2 M use


Vol1M1 = Vol2M2





Vol1 =?


M1=15.8


Vol2 = 1 liter


M2 = 2 ::: so Vol1 = (1Liter x 2 M)/15.8M = .12658 L = 126.6 mL


dilute 126.6 mL of the 30% o exactly 1 liter to get 2 M NH3...How to make up 2M of Ammonia from concentrate?
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