# College Chemistry

Sulfur trioxide is made from the reaction of sulfur dioxide and oxygen. how many grams of SO3 can be made from the reaction of 1.91g SO2 with 1.29g O2?

2 SO2(g) + O2(g)---> 2SO3(g)

a) 2.39g
b) 3.20g
c) 3.23g
d) 4.77g
e) 6.46g

How would i solve this problem?? Im thinking i would use the simplest formula, but im not sure if that's right. And if so, how would i do it??

1. 👍 0
2. 👎 0
3. 👁 185
1. This is a limiting reagent problem.
1. You have the equation and it's balanced.
2a. Convert 1.91 g SO2 to moles. moles = grams/molar mass.
2b. Convert 1.92 g O2 to moles. Same procedure.

3a. Using the coefficients in the balanced equation, convert moles of SO2 (from 2a) to moles of SO3.
3b. Same process, convert moles O2 (from 2b) to moles SO3.
3c. Probably the moles from 3a and 3b will be different which means one of them is wrong. The correct number of moles, in limiting reagent problems, is ALWAYS the smaller value and the reagent producing that value is the limiting reagent.
4. Convert moles from 3c to grams. g = moles x molar mass.

1. 👍 0
2. 👎 0
posted by DrBob222

## Similar Questions

1. ### chemistry

According to the following reaction, how many grams of sulfur trioxide will be formed upon the complete reaction of 21.2 grams of oxygen gas with excess sulfur dioxide? sulfur dioxide (g) + oxygen (g) sulfur trioxide (g)

asked by nik on October 24, 2010
2. ### Chemistry

At 627ºC, sulfur dioxide and oxygen gases combine to form sulfur trioxide gas. At equilibrium, the concentrations for sulfur dioxide, oxygen, and sulfur trioxide gases are .0060M, .0054M, and .0032M, respectively. a. Write a

asked by dauntedorange on February 27, 2013
3. ### Chemistry

Sulfur dioxide reacts with oxygen to form sulfur trioxide according to the equation 2SO2(g) + O2(g) 2SO3(g) Samples of sulfur dioxide, oxygen, and sulfur trioxide were added to a flask of volume 1.40 dm^3 and allowed to reach

asked by Autumn on November 20, 2017
4. ### Chemistry

Sulfur dioxide (SO2) reacts with oxygen gas to make sulfur trioxide (SO3). How many grams of oxygen are used to produce 8.11 grams of sulfur trioxide?

asked by Petey on April 9, 2016
5. ### chemistry

Sulfur dioxide and oxygen react to form sulfur trioxide as follows 2SO_2(g) + O_2(g) ⇌ 2SO_3(g) 1 mole of sulfur dioxide is mixed with 0.5 moles of oxygen gas in a 1 L container. There is 0.9 mol of SO_3 at equilibrium.

asked by anonymous on January 19, 2018
6. ### chemistry homework

In the preparation of sulfuric acid, sulfur dioxide must be catalytically oxidized to sulfur trioxide. How much oxygen must be available to convert 50.0 L of sulfur dioxide according to this process?

asked by christine on May 15, 2008
7. ### Chemistry

Elemental sulfur can form sulfur trioxide when burned. When sulfur trioxide is dissolved in water, it yields sulfuric acid. The net reaction is shown. What mass of sulfur is needed to yield 138 grams of sulfuric acid. S8(s) +

asked by Trevor on September 29, 2008
8. ### chemistry

Oh my my test is coming up and I have no idea how to do these questions and when I asked my teacher for help he said you should do it yourself.... Thanks! An intermediate step in the production of battery acid, sulfuric acid,

asked by Tri on October 7, 2008
9. ### chemistry

sulfur trioxide gas dissociates into sulfer dioxide gas and oxygen gas at 1250 degrees C. In an experiment, 3.6 moles of sulfur trioxide were placed into an evacuated 3.0-L flask. THe concentration of sulfur dioxide gas measured

asked by alexa on April 29, 2007
10. ### Chemistry

The gas sulfur dioxide, SO2, oxidizes to form another gas, sulfur trioxide, SO3. How many oxygen atoms are present in 3.20 g of sulfir trioxide?

asked by b. on November 6, 2012

More Similar Questions