posted by .

Xylose, a sugar isolated from wood, has the empirical formula CH2O. If a 6.25 mole sample
of xylose has a mass of 938.3 g, what is xylose's molecular formula?

  • Chemistry -

    mols = grams/molar mass
    Solve for molar mass.

    Then empirical mass is
    C = 12
    H = 2
    O = 16
    molar mass = empirical mass*x
    Solve for x and substitute into
    (CH2O)x or you can write it as CxH2xOx

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    what is the molecular formula of a compound that is 54.5% C, 9.09% H, and 36.4% O. with a molecular weight of 176g/mol. A)C8H16O4 B)C4H8O2 C)C7H12O5 D)C9H18O3 Assume you have 100 g of the substance, then you have 54.5g of C, etc. Moles …
  2. Chemistry (Check)

    True or False The empirical formula of a compound is always the same as the molecular compound. My Answear: True The empirical formula for acetylene is CH. The molecular formula is C2H2. Another example: The empirical formula for glucose …
  3. Chemistry

    If you divide the molar mass of a compound by the empirical formula mass, what is the result?
  4. Chemistry

    Please check my answers for the following questions. THANK YOU. 1) The empirical formula of a compound that is 25.9% nitrogen and 74.1% oxygen is.... ANSWER: N2O 2) empirical formula of a compound that consists of 4.80 grams of carbon, …
  5. chemistry

    I need to know if I have th right molecular formula for Sorbito 39.56g C 7.75g H 52.7g O Empirical Formula is CH2O 30.026 amu how I how calculate the molecular mass and how I figure out the melecular formula?
  6. Chemistry

    What is the molecular formula of a molecule that has an empirical formula of CH2O and a molar mass of 120.12g/mol?
  7. chemistry

    Determining a Molecular Formula from an Empirical Formula 1. A compund has an experimental molar mass of 78g/mol. Its empirical formula is CH. What is its molecular formula?
  8. chemistry

    If a compound's empirical formula is CH2O and its' formula mass is 120.12 amu, what is its' molecular formula
  9. Chemistry

    Is xylose a pentose or a hexose?
  10. Chemistry

    The empirical formula of a compound is CH2O and the molecular mass is 180. What is the molecular formula of the compound?

More Similar Questions