Homework Help: chemistry

Posted by Sweetie on Sunday, September 12, 2010 at 10:36pm.

Sulfer trioxide, SO3, is made industrially in enormous quantities by combining oxygen and sulfer dioxide, SO2. What amount (moles) of SO3 is represented by 1.00 kg of sulfur trioxide? How many molecules? How many sulfer atoms? How many oxygen atoms?

chemistry - DrBob222, Monday, September 13, 2010 at 12:09am
1,000 g SO3 x (1 mole SO3/molar mass SO3)= moles SO3.

You know there are 6.022 x 10^23 molecules in 1 mole of anything.

Since there is 1 atom S in a molecule of SO3, the number of atoms S must be the same as the number of molecules SO3.

Since there are 3 oxygen atoms per molecule of SO3, there must be 3 times the number of atoms O as there are of molecules SO3.

Answer this Question

Related Questions

chemistry - sulfur trioxide gas dissociates into sulfer dioxide gas and oxygen ...
chemistry - When anhydrous iron sulfate decomposes it forms iron (III) oxide, ...
Chemistry - The gas sulfur dioxide, SO2, oxidizes to form another gas, sulfur ...
chemistry - What volume of SO2 will result from the complete burning of sulfer ...
Chemistry - Sulfur trioxide, SO3, is made from the oxidation of SO2, and the ...
chemistry - Sulfur trioxide, SO3, is produced in enormous quantities each year ...
chemistry - sulfur dioxide (g) + oxygen (g) sulfur trioxide (g) SO2 + O = SO3 Is...
College Chemistry - Sulfur trioxide is made from the reaction of sulfur dioxide ...
Chemistry 111 - Calculate the number of moles of alumunium sulfer, oxygen atoms ...
chemistry - An equilibrium mixture of SO2,SO3 and O2 gases is maintained in a 11...

For Further Reading

First Name:
School Subject:
Answer: