The mole fraction of the 2.2 molal solution whose solvent is naphthalene is 0.28.
Using the relation;
molality = mole fraction × 1000/MA
Where MA = molar mass of the solvent
We know from the question that the molaity of the solution is 2.2 molal
Making the mole fraction the subject of the formula;
mole fraction = molality × MA/1000
MA = 128 g/mol
mole fraction = 2.2 × 128/1000
Mole fraction = 0.28
Learn more: brainly.com/question/2510654
A centimeter(cm) is larger than a millimeter(mm).The tiny dashes are millimeters and there are ten millimeters in a centimeter so, the tiny dashes are millimeters that count as 1 and the slightly longer one is half of a centimeter meaning 5.
Does it make sense? :)
I'm pretty sure hydrogen is but i would go with #3 carbon