D. all of the above, although I do find it hard to believe something like flour would have a melting point, I looked up my answer to double check.
Molality= mol/ Kg
if we assume that we have 1 kg of water, we have 3.19 moles of solute.
the formula for mole fraction --> mole fraction= mol of solule/ mol of solution
1) if we have 1 kg of water which is same as 1000 grams of water.
2) we need to convert grams to moles using the molar mass of water
molar mass of H₂O= (2 x 1.01) + 16.0 = 18.02 g/mol
1000 g (1 mol/ 18.02 grams)= 55.5 mol
3) mole of solution= 55.5 moles + 3.19 moles= 58.7 moles of solution
4) mole fraction= 3.19 / 58.7= 0.0543
Convert grams to moles and use Avogadro's number 6.022x10tho the 23rd power. Hope this helps
<span>This is Pseudoscience. The scientists didn’t study their
experiment, they would have to prove their claim more than once, and they
assumed things before actually studying it. </span>
Explanation:
1=2 atoms
2=4-n where n is the number of bonds to that carbon
3=10
4=2
