A solution prepared by dissolving 171 mg of a sugar (a molecular compound and a nonelectrolyte) in 1.00 g of water froze at -0.930°C. What is the molar mass of this sugar? The value of Kf is 1.86°C/m.

The appropriate answer is "342 g/mol".

Explanation:

Given:

Freezing point,

= 0.93°C

Kf,

= 1.86°C/m

Mass,

= 171

As we know,

⇒

Now,

⇒

hence,

The molar mass of the sugar will be:

=

=

=

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.