Homework Help: Chemistry

Posted by AJ on Sunday, January 14, 2007 at 6:57pm.

When 23.18 g of element A react completely with 48.08 g of E, compound A2E is formed. When 11.70 g of A react with 22.57 g of G, compound AG is formed. If elements E and G react to form EG3, what mass in grams of G is required to react with 12.97 g of E?

The molar mass of E is 115.988 g mol-1.

From The problem we know
2A + E ==> A₂E
We have mols E = g/molar mass = 48.08/115.988 = 0.4145 mols.
mols A must be twice that
0.4145 x 2 = ??
molar mass A = g/mol = 23.18/.82905 = ??

Similarly, the reaction A + G is done to determine the molar mass of G.

Similarly, the reaction of E and G is done to determine the grams G that reacts.
Post your work if you get stuck.

No one has answered this question yet.

Answer this Question

Related Questions

chemistry - When 21.29 g of element A react completely with 58.37 g of E, ...
Chemistry - "How many moles of oxygen are required to react completely with...
Chemistry - Compound A reacts with element B (a halogen) to form compounds C and...
Chemistry - What is the molarity of a 37.50 mL sample of HNO3 solution that will...
chemistry - Al2(SO4)3+6KOH-->2Al(OH)3+3K2SO4 a)How many grams of ...
Chemistry - When a 1.350g sample of element X is heated in a stream of chlorine ...
Chemistry - When a 1.350g sample of element X is heated in a stream of chlorine ...
chemistry - oxygen will react with the metal copper it will also react with the...
chemistry - Determine the volume of a 0.550M of kmno4 solution required to ...
Physical Science - 11. Chromium is produced by reacting its oxide with aluminum...

For Further Reading

First Name:
School Subject:
Answer: