chemistry

Cellobiose(a nonvolative, nonelectrolyte) is a sugar obtained by degratation of cellulose. If 200.mL of an aqueous solution containing 1.500g of cellobiose at 25C give rise to an osmotic pressure of 407.2mmHg. What is the molecular mass of Cellobiose?

  1. 👍
  2. 👎
  3. 👁
  1. I converted the osmotic pressure to atm. then used the equation pi =iMRT, i plugged in the numbers but i am calculating it wrong.

    .5357894737 = 1.500g/X/.200L(.0821)(298.15) if that's correct

    but when i plug it in to my calculator i get a different answer instead of the actual answer which is 342.6g/mol

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A 4g of sugar cube sucrose (C12 H22 O11) is dissolved in a 350ml teacup of 80 degree census of water 1: What will be the molarity of the sugar 2:What is the percentage composition by mass of the sugar

  2. Chemistry

    Which one of the following pairs of 0.100 mol L-1 solutions, when mixed, will produce a buffer solution? A. 50. mL of aqueous CH3COOH and 25. mL of aqueous CH3COONa B. 50. mL of aqueous CH3COOH and 25. mL of aqueous HCl C. 50. mL

  3. mixture

    Sugar solution is composed of 40 grams of sugar and 200 grams of water. How many grams of sugar must be added to make a 60% sugar solution? (Kindly write the equation..... tnx)

  4. science

    if more sugar is placed into a glass of iced tea than can dissolve in the te,the additional sugar will sink to the bottom of the iced tea. Which of the following statements best accounts for the observation that an oversupply of

  1. chemistry

    Which has the highest boiling point and lowest freezing point? (a) 0.4 m NaCl 0.3 m Na2SO4 0.5 m sucrose (nonelectrolyte) (b)0.2 m HCl 0.2 m acetic acid 0.3 m KOH (weak electrolyte) (c) 0.5 m ethylene glycol (nonelectrolyte) 0.4 m

  2. chemistry

    I do not understand how to right a balanced equation for the combustion of cellulose in oxygen to produce carbon dioxide and water vapor. I know that cellulose is C6H10O5 but I don't understand how to balance. Thanking you in

  3. Chemistry

    How do these react? Some may have no reaction. a. aqueous chromium(III) nitrate plus magnesium metal b. aqueous lithium sulfate plus aqueous barium chloride c. solid lead metal plus aqueous potassium chloride d. aqueous lithium

  4. SS

    Why did sugar plantations produce such high profits? A. Sugar cane was easy and cheap to grow. B. The colonial governors placed a high tax on sugar. C. Europe had a high demand for sugar, molasses, and rum. D. Spanish plantation

  1. science

    Sugar is a pure substance, but it is not an element. Which sentences support this statement? Hint: Consider the definition of an element. Select all that apply. a The process of cellular respiration uses sugar and provides energy

  2. chemistry

    an aqueous solution containing 17.5g of an unknown molecular(nonelectrolyte) compound in 100.0g of water has a freezing point of 1.8 degress C. calculate the molar mass of the unknown compound

  3. Chemistry

    You have two beakers, one filled to the 100 mL mark with sugar (mass of sugar 180.0 g) and the other filled to the 100 mL mark with water (m of water 100.0 g). You pour all the sugar and all the water together in a bigger beaker

  4. algebra

    Sugar solution is composed of 40 grams of sugar and 200 grams of water. How many grams of sugar must be added to make a 60% sugar solution? (please answer this with a complete solution)

You can view more similar questions or ask a new question.