Chemistry

posted by .

Can some please check my answers for the following questions? THANK YOU.

1)The chemical formula for aspirin is C9H8O4. What is the mass of 0.40 mol of aspirin?
ANSWER: 45 g

2)The gram molecular mass of oxygen is.
ANSWER: 16.0 g

3)What is the mass, in grams, of 3.01 x 10^23 molecules of water?
ANSWER: 9.00 grams

2) No. Oxygen is naturally occuring as a molecule, O2, molecular mass 32

1) No. Mole mass of asprin is much more, close to 180 grams per mole. Recalculate.

3) yes.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    I need some help with calculating percent yield and percent purity of aspirin. Here's my data (questions follow): SYNTHESIS Mass of salicylic acid.., 2.0 g Volume of acetic anhydride.., 5 mL Mass of watch glass.., 22.10 g Mass of aspirin …
  2. Chemistry

    please check my answers for the following questions. 1) when a measurement that has six significant digits is divided by a measurement that has three significant digits, how many significant digits should the answer have?
  3. Chemistry

    1)The chemical formula for aspirin is C9H8O4. What is the mass of 0.40 mol of aspirin?
  4. Chemistry

    Aspirin is a weak acid with a Ka of 3.0x10^-5. Find the pH of a solution by dissolving .65g of aspirin in water and diluting it to 50mL. You can use RCOOH to represent aspirin. Molecular weight of aspirin is 180g/mol
  5. chemistry

    a. What is the molecular weight of aspirin (C9H8O4)?
  6. Chemistry

    I need some help with some of these questions: The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name implies, it stinks! It is 58.77 percent carbon, 13.81 percent hydrogen, and 27.40 percent …
  7. chemistry - synthesis of aspirin

    wanted to calculate the theoretical and actual yield of aspirin. mass of salicylic acid = 2.005 g But isn't salicylic acid differ. from acetic acid?
  8. chemistry - synthesis of aspirin

    This is an experiment for a synthesis of aspirin lab mass of salicylic acid = 2.005 g mass of acetic acid = ?
  9. chemistry

    You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, combust it under an oxygen atmosphere, and collect 2.20 g of carbon dioxide and 0.400 g water. The molar mass of aspirin …
  10. Organic Chemistry

    A 1.0 gram sample of aspirin will dissolve in 300 mL of water and in 17 mL of chloroform at 25 deg C. a. What is the solubility of aspirin in each solvent expressed in g/mL?

More Similar Questions