the combining ratio by weight of copper and sulfur assignment
You need to clarify your post.
To determine the combining ratio by weight of copper and sulfur, you need to know the chemical formula of the compound they combine to form. In this case, they combine to form copper sulfide (CuS).
The combining ratio by weight refers to the ratio of the masses of copper and sulfur in the compound. Copper has an atomic weight of approximately 63.55 grams per mole, while sulfur has an atomic weight of about 32.06 grams per mole.
In copper sulfide (CuS), there is one atom of copper (Cu) and one atom of sulfur (S) per molecule. Therefore, we can say that the combining ratio by weight is 1:1.
To calculate the combined mass ratio, you would add the atomic weights of copper and sulfur. In this case, it would be:
Copper (Cu) = 63.55 g/mol
Sulfur (S) = 32.06 g/mol
The combined mass would be:
Combined Mass = Mass of Copper + Mass of Sulfur
= 63.55 g + 32.06 g
= 95.61 g
So, in copper sulfide (CuS), the combining ratio by weight of copper to sulfur is 63.55 g : 32.06 g or approximately 1.98:1.