Asolution of water (kf=1.86 ∘c/m) and glucose freezes at − 2.75 ∘c. what is the molal concentration of glucose in this solution? assume that the freezing point of pure water is 0.00 ∘c.

Explanation:

Relation between freezing temperature and molal concentration is as follows.

The given data is as follows.

    = difference in temperature = =

            molality, (m) = ?  

Now, putting the given values into the above formula as follows.

                m =

                    =

                    = 1.48 m

Therefore, we can conclude that molal concentration of glucose in the given solution is 1.48 m.

6.4 cm (max) - 25 cm (min)

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.