Homework Help: Chemistry

Posted by Emat on Thursday, February 19, 2009 at 8:52pm.

C7H6O3(s) + C4H6O3(l) → C9H8O4(s) + HC2H3O2(l)
is the equation.
At 20 degree celsius, how many liters of acetic acid, HC2H3O2, would be formed?
The density of acetic acid is 1.05g/cm3.

Chemistry - DrBob222, Thursday, February 19, 2009 at 9:07pm
You didn't write all of the question. You get zero liters of acetic acid if you have no C7H6O3 and no C4H6O3 initially. By the way, if those formulas have names, put them down. It's a lot easier to type names than formulas.
Chemistry - Emat, Thursday, February 19, 2009 at 9:14pm
Aspirin, C9H8O4, is produced through the following reaction of salicylic acid, C7H6O3, and acetic anhydride, C4H6O3: C7H6O3(s) + C4H6O3(l) → C9H8O4(s) + HC2H3O2(l).
a.) What mass of aspirin (in kg) could be produced from 75.0 mol of salicylic acid?
b.) What mass of acetic anhydride (in kg) would be required?
c.) At 20°C, how many liters of acetic acid, HC2H3O2, would be formed? The density of HC2H3O2 is 1.05 g/cm3.
Chemistry - DrBob222, Thursday, February 19, 2009 at 9:39pm
a. 75 mol of salicylic acid will product 75.0 mol aspirin since 1 mol of salicylic acid produces 1 mol aspirin. Then grams = mols x molar mass.
b. You know 75.0 mol salicylic acid will require 75.0 mol acetic anhydride. g = mols x molar mass.
c. 75.0 moles salicylic acid will produce 75.0 moles acetic acid and grams = moles x molar mass. Then mass = volume x density. You know mass and density, calculate volume.
Chemistry - Emat, Thursday, February 19, 2009 at 10:18pm
thanks a lot!!
Chemistry - Kimy, Tuesday, January 19, 2010 at 11:57pm
what would be the answer for letter c ??
Chemistry - Edgetune, Tuesday, February 15, 2011 at 10:51pm
The answer for letter C would be 4.29 Liters of HC2H3O2 (acetic acid). You probably don't need that anymore though haha.

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