Asked Nov 30, 2019

when 12.259g of a compound containning only copper and oxygen is descomposed it produced 2.410 of oxygen. how many grams of copper were in the compound?      Thank you.




Expert Answer

Step 1

According to law of conservation of mass, total mass of reactants and products in a chemical reaction is same.

In other words, in a chemical reaction, total mass of reactants is equal to total mass of products.

Step 2

As the compound contains only copper and oxygen, so, on decomposition, sum of mass of copper and that of oxygen formed will be equal to mass of compound decomposed.

Mass of compound decomposed = 12...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



General Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Selective synthesis and starting materials?

A: Reduction of alkynes with Lindlars’s catalyst gives cis alkene.  In this reaction, partial reduction...


Q: Examine his results carefully and check the box next to the incorrect quantity in each row if any.

A: Click to see the answer


Q: How to complete A?

A: The chemical structure and absolute configurations are given in step 2.


Q: If the heat of combustion for a specific compound is -1160.0 kJ/mol and its molar mass is 92.31 g/mo...

A: Given information,


Q: In a 9M solution of Chromium (III) nitrate what is the molar concentravtion of NO3- anions

A: The molecular formula of the compound


Q: Silver nitrate, AgNO3, can be used to test for the presence of chloride ions in solution, because it...

A: Given that,Molarity of the HCl = 0.10 MVolume of the HCl = 50.0 mLMolarity of AgNO3 = 2.0 M


Q: Given that H2 (g) + F2(g) 2 HF(g) AHgxn = -546.6 kJ 2 H2(g)+02(g) 2 H2O(1) ΔΗ -571.6 kJ rxn calculat...

A: The enthalpy of reaction of the required equation can be calculated using the given two reactions.


Q: Construct a three-step synthesis of 3-bromocyclopentene from cyclopentane. Drag the appropriate item...

A: Click to see the answer


Q: How many structures are possible for a tetrahedral molecule with a formula of AX3Y? How many structu...

A: Suppose A is the center of the tetrahedron and X are Y ae in the vertices of the tetrahedron.