Question

Hii guys..!
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Mole fraction of urea in an aqueous solution containing 10%urea by mass of solution is ......
a)0.032
b)0.968
c)0.90
d)0.10

Answer fast with correct solution...! ​

Answer 1

Answer:

Mole fraction of urea is 0.032

Mole fraction of a substance is the ratio of the moles of that substance to the total number of moles present. Given : 10 g of urea is present in 100 g of solution. Thus mass of wtaer = (100-10) g = 90 g.

Answer 2

Answer:

ᴍᴏʟᴇ ꜰʀᴀᴄᴛɪᴏɴ ᴏꜰ ᴜʀᴇᴀ ɪꜱ 0.032

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