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SoCalChris06

  • 3 years ago

I need help with organic chem

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  1. Kryten
    • 3 years ago
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    can you please ask a question.

  2. SoCalChris06
    • 3 years ago
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    how to form hemiacetal/acetals

  3. SoCalChris06
    • 3 years ago
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    O H R1-C-H + O-R2 ------->

  4. .Sam.
    • 3 years ago
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    Reaction of carbonyl groups with alcohol,

  5. SoCalChris06
    • 3 years ago
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    i need help getting what this means

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  6. .Sam.
    • 3 years ago
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    |dw:1351060446680:dw|

  7. .Sam.
    • 3 years ago
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    What type of file is that? Is that .doc, docx, .pdf, .txt?

  8. SoCalChris06
    • 3 years ago
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    not sure im on my mac

  9. .Sam.
    • 3 years ago
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    I can't open that, can you screenshot it?

  10. SoCalChris06
    • 3 years ago
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    |dw:1351060784194:dw|

  11. SoCalChris06
    • 3 years ago
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    this one was the aldehyde, alcohol and the last one is the hemiacetal

  12. SoCalChris06
    • 3 years ago
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    r u still there?

  13. SoCalChris06
    • 3 years ago
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    |dw:1351061659559:dw| Classify this monosaccharide as an aldose or a ketoses?

  14. .Sam.
    • 3 years ago
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    Its easy to look at it, that's aldose |dw:1351062443611:dw| There's no ketone group found in this molecule.

  15. SoCalChris06
    • 3 years ago
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    HOW ABOUT:.......

  16. SoCalChris06
    • 3 years ago
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    |dw:1351062552815:dw|

  17. .Sam.
    • 3 years ago
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    That's ketose because there's ketone group attached to it.

  18. .Sam.
    • 3 years ago
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    |dw:1351062770074:dw|

  19. SoCalChris06
    • 3 years ago
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    SO WHEN THE QUESTION IS ASKING CLASSIFY EACH OF THE FOLLOWING MONOSACCHARIDES AS AN ALDOSE OR A KETOSE ITS THAT SIMPLE?

  20. SoCalChris06
    • 3 years ago
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    |dw:1351062942152:dw| KETOSE?

  21. .Sam.
    • 3 years ago
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    An aldose is a monosaccharide that contains only one aldehyde (-CH=O) group in a molecule. As for ketose, a ketose is a sugar containing one ketone group in a molecule.

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  22. .Sam.
    • 3 years ago
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    @SoCalChris06 that's ketose.

  23. SoCalChris06
    • 3 years ago
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    |dw:1351063111146:dw| KETOSE?

  24. .Sam.
    • 3 years ago
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    ketose

  25. SoCalChris06
    • 3 years ago
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    SO ALL OF THEM WERE KETOSE BUT THE FIRST ONE?

  26. .Sam.
    • 3 years ago
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    yes

  27. SoCalChris06
    • 3 years ago
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    AND THE O THAT WAS ATTATCHED IS THE INDICATOR?

  28. .Sam.
    • 3 years ago
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    You do know that ketones are R-C(O)-R right?

  29. .Sam.
    • 3 years ago
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    And aldehydes are R-COH

  30. SoCalChris06
    • 3 years ago
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    YES

  31. SoCalChris06
    • 3 years ago
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    BUT WHAT DOES THE R MEAN

  32. .Sam.
    • 3 years ago
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    R groups are side chains, like Alchohol, Carbonyls (aldehydes and ketones), Carboxylic acid, Esters, Amines, Amides etc. Bonded to the molecule. We'll take ketone for example, |dw:1351063817237:dw| Take Carboxylic acid (-COOH) and Amines (-NH2) bonded with our ketone, it will look like this: |dw:1351063838534:dw|

  33. SoCalChris06
    • 3 years ago
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    OH, SO ITS LIKE THE N OR X IN ALGEBRA

  34. SoCalChris06
    • 3 years ago
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    THE UNKNOWN

  35. .Sam.
    • 3 years ago
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    Yes, R can be replaced by those

  36. SoCalChris06
    • 3 years ago
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    OH OK. I GOT IT

  37. SoCalChris06
    • 3 years ago
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    I HAVE ANOTHER QUESTION FROM MY BOOK:

  38. SoCalChris06
    • 3 years ago
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    THE INTERMOLECULAR REACTION THAT PRODUCES THE CYCLIC FORMS OF MONOSACCHARIDES INVOLVES FUNCTIONAL GROUPS ON WHICH 2 CARBON ATOMS IN THE CASE OF EACH OF THE FOLLOWING? A.) D-GLUCOSE B.)D-GALACTOSE C.)D-FRUCTOSE D.) D-RIBOSE

  39. .Sam.
    • 3 years ago
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    The only ketose group here is D-Fructose

  40. SoCalChris06
    • 3 years ago
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    IS THAT WHAT ITS ASKING?

  41. .Sam.
    • 3 years ago
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    Can you choose more than one?

  42. SoCalChris06
    • 3 years ago
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  43. SoCalChris06
    • 3 years ago
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    I KNOW A IS ALPHA B IS ALPHA C IS BETA AND I DONT KNOW WHICH D IS

  44. .Sam.
    • 3 years ago
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    Its alpha , look: |dw:1351065817816:dw|

  45. .Sam.
    • 3 years ago
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    |dw:1351065913476:dw|

  46. SoCalChris06
    • 3 years ago
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    SO ITS ON OPPOSITE ENDS?

  47. SoCalChris06
    • 3 years ago
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    THE CH2OH AND OH, IS THAT WHAT YOURE LOOKING AT?

  48. .Sam.
    • 3 years ago
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    The Anomeric carbon be side the oxygen is always the one who determines whether its alpha or beta

  49. SoCalChris06
    • 3 years ago
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    WHAT DO U MEAN WHEN YOU SAY ANOMERIC

  50. .Sam.
    • 3 years ago
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    Take a look here: http://en.wikipedia.org/wiki/Anomer

  51. .Sam.
    • 3 years ago
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  52. SoCalChris06
    • 3 years ago
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    |dw:1351066163514:dw| SO, THE WAY I WAS ABLE TO DETERMINE IF IT WAS A ALPHA OR BETA CAUSE IF IT WAS ON THE OPPOSITE SIDE, (DIFFERENT) SIDES, ITS AN ALPHA. IF ITS ON THE SAME SIDE: |dw:1351066436831:dw|

  53. SoCalChris06
    • 3 years ago
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    SO, SAME SIDE IS BETA

  54. SoCalChris06
    • 3 years ago
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    THATS WHY THE LAST ONE THREW ME OFF

  55. .Sam.
    • 3 years ago
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    No, look closely its like this|dw:1351066676182:dw| You include the oxygen with the first carbon (or anomeric carbon), so for this one its beta.

  56. SoCalChris06
    • 3 years ago
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    ITS BETA CAUSE THE CH2OH AND OH ARE ON THE SAME SIDE RIGHT?

  57. .Sam.
    • 3 years ago
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    So, for the last one |dw:1351066852933:dw| is alpha

  58. SoCalChris06
    • 3 years ago
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    |dw:1351066888242:dw| CAUSE THEY ARE ON OPPOSITE SIDES?

  59. .Sam.
    • 3 years ago
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    |dw:1351066975972:dw| |dw:1351066986195:dw|

  60. .Sam.
    • 3 years ago
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    The -OH determines whether its a alpha or beta, when -OH is on top, its beta, when -OH is on bottom, its alpha

  61. SoCalChris06
    • 3 years ago
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    |dw:1351067070066:dw| SO WHY WHEN U SWITCHED THEM DID THEY CHANGE?

  62. SoCalChris06
    • 3 years ago
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    OHHHHHHHHHHHH!!!!!!!!!!!! LOL THAT MAKES SENSE...

  63. SoCalChris06
    • 3 years ago
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    WILL YOU BE ON HERE TOMORROW?

  64. SoCalChris06
    • 3 years ago
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    I NEED TO GET SOME REST. I NEED TO STUDY ALL DAY TOMORROW, BUT U HELPED ME WITH A FEW THINGS.

  65. SoCalChris06
    • 3 years ago
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    ITD BE COOL IF U CAN GET ON TOMORROW, AT ABOUT 8AM LOS ANGELES TIME.

  66. .Sam.
    • 3 years ago
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    Okay, I see whether if I'm free at that time.

  67. SoCalChris06
    • 3 years ago
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    YEA, ILL BE ON HERE BETWEN 8:30AM TO LIKE 2PM LOS ANGELES TIME

  68. SoCalChris06
    • 3 years ago
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    THANK YOU SO MUCH. I NEED TO PASS THIS TEST

  69. .Sam.
    • 3 years ago
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    Welcome ;)

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