05 Concentration using % (m/m), % (v/v), %(m/v)

[@Garorduno]

Better explanation than my professor

[@TOPNerd-zhc]

which country ur ??

[@emanisrar5405]

Nice❤

[@lindadanjuma8622]

Thank you

[@praveenekanayake230]

legend

[@spiralbuilders6228]

Please answer this.
If 250ml of 100proof mix to the 1000ml of water is equivalent 1250ml of 20proof.
How many proof if you mix this two kind of liqour
250ml of 100proof plus 350ml of 80 proof