# Chemistry

posted by .

Maleic acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.271 mol of maleic acid has a mass of 31.4 g, what are the empirical and molecular formulas of maleic acid?

So I checked the problem again, and yes this is the whole problem. I even copied and paste it from the homework page online. There's no part a or b before it either.... so do you think this problem is doable?

• Chemistry -

Excuse me, I was sleepy last night OR my brain was out of town.
I think the empirical formula you had was CHO and the formula mass for CHO is 12+1+16=29

moles = grams/molar mass and rearrange to
molar mass = grams/moles = 31.4 g/0.271 moles = about 117 or so. You can do it more accurately. So how many units of CHO are in the 117; that will be 117/29 = 4.03 which rounds to 4.0 and the molecular formula is (CHO)4 or to put it in more conventional terms it would be C4H4O4

## Similar Questions

1. ### Chemistry

HELP£¡ can someone find identify one chemical reaction that C4H4O4 is involved in. Or the synthesis of the compound?
2. ### chemistry

The Ka values of maleic acid, HOOCCHCHCOOH, are shown below. Ka1 1.5 10-2 Ka2 2.6 10-7 A 50.0 mL sample of 0.11 M of maleic acid is titrated with 0.14 M NaOH. Calculate the pH at the following points in the titration curve. find the …
3. ### Chemistry

Maleic acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.271 mol of maleic acid has a mass of 31.4 g, what are the empirical and molecular formulas of maleic acid?
4. ### chem

Maleic acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.250 mol of maleic acid has a mass of 29.0 g, what are the empirical and molecular formulas of maleic acid?
5. ### Chemistry

h2c4h4o4 + 2naoh --> 2h2o + na2c4h4o4 as for the previous question im sorry i forgot to plug the maleic acid in the formula properly. so this ones it ^ .2213 of c4h4o4 used (maleic acid) and .1 M NaOH 1. show the equation for 1st …
6. ### Chemistry

Maleic acid is a carbon-hydrogen-oxygen compound used in dyeing and finishing fabrics and as a preservative of oils and fats. * In a combustion analysis, a 1.054-\rm g sample of maleic acid yields 1.599 \rm g of \rm CO_2 and 0.327 …
7. ### chemistry

the titration of 25.0 mL of a 0.040 M aqueous solution of maleic acid C2H2(COOH)2, with aqueous 0.10 M NaOH solution. For maleic acid, Ka1 = 0.013 and Ka2 = 8.5 x 10-7 How many milliliters of the 0.10 M NaOH solution are needed to …
8. ### Chemistry

Item 1 Maleic acid is a carbon-hydrogen-oxygen compound used in dyeing and finishing fabrics and as a preservative of oils and fats. •In a combustion analysis, a 1.054-g sample of maleic acid yields 1.599 g of CO2 and 0.327 g of …
9. ### Chemistry

A solution containing 0.0158 M maleic acid and 0.0226 M disodium maleate. The Ka values for maleic acid are 1.20 × 10-2 (Ka1) and 5.37 × 10-7 (Ka2). What is the pH of the solution ?
10. ### CHEMISTRY !!! HELP !

A solution containing 0.0158 M maleic acid and 0.0226 M disodium maleate. The Ka values for maleic acid are 1.20 × 10-2 (Ka1) and 5.37 × 10-7 (Ka2). What is the pH of the solution ?

More Similar Questions