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A. 100 ml of rubbing alcohol contains 70 ml ethyl alcohol.What is the percentage by volume concentration of ethyl alcohol in the rubbing alcohol?

1.50g of urea was dissolved in 500mv of water with total mass of the solution equals to 550g.What is the percentage of mass urea in the solution?


show the complete process of computation to obtain the correct answer.​


Sagot :

Answer:

Nasagutan kuna to eh perfect pa nga kapatid ko