mass percent and molarity answer to this discussion board and then i ll send you 2 comments from peers to write replies for each

mass percent and molarity answer to this discussion board and then i ll send you 2 comments from peers to write replies for each.

A concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at 25°C. What is the molarity of H3PO4? What is the mole fraction of urea, CO(NH2)2, in a solution prepared by dissolving 5.6 g of urea in 30.1 g of methanol, CH3OH? How will an understanding of this concept help you in your healthcare career?

Some hints to consider when preparing your posts:

85.5% means 85g/100g

mole fraction = (moles solute)/ [(moles solute) + (moles solvent)]

where solute is the urea and solvent is the methanol

 

mass percent and molarity answer to this discussion board and then i ll send you 2 comments from peers to write replies for each

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