[chunli]

Hello helpful people,

I don't understand this question, please help me.
Thanks in advance=)


All aldoses exhibit mutarotation. For example, α-D-galactopyranose has
[α]D = +150.7 and β-D-galactopyranise has [α]D = +52.8. If either anomer
is dissolved in water and allowed to reach equilibrium, the specific
rotation of the solution is +80.2. What are the percentages of each
anomer at equilibrium? Draw the pyranose forms of both anomers.

[sjb]

Hello helpful people,

I don't understand this question, please help me.
Thanks in advance=)


All aldoses exhibit mutarotation. For example, α-D-galactopyranose has
[α]D = +150.7 and β-D-galactopyranise has [α]D = +52.8. If either anomer
is dissolved in water and allowed to reach equilibrium, the specific
rotation of the solution is +80.2. What are the percentages of each
anomer at equilibrium? Draw the pyranose forms of both anomers.

What are you having difficulty with? Without a start, I am not sure how to lead.

[Dan]

Start here: http://en.wikipedia.org/wiki/Mutarotation

That page actually provides all the information you need. Study it and we can clarify anything you are specifically unsure about.