(2.5 grams =) 0.0393 moles of copper reacts with (0.31* grams =) 0.0194
moles of oxygen to produce something that has a ratio of 2.0 moles copper to 1 mole oxygen.
Copper has a +1 and a +2 oxidation state and Oxygen has (usually) a -2 oxidation state so we know it isn't CuO because that's a 1:1 ratio. Cu2O has a 2:1 ratio...what could it be?
*notice that the subtraction: 2.81g - 2.50 g = 0.31 g, reduced my significant digits to two.
The difference in mass between the copper and the copper oxide is 0.31 g. To find the moles of oxygen, we need to convert this mass difference to moles. The molar mass of Cu is 63.55 g/mol and the molar mass of O is 16.00 g/mol. The ratio of Cu to O is 1:1, so the simplest formula of the copper oxide is CuO.
Copper Sulphate is composed of copper, sulfur, and oxygen. The chemical formula is CuSO4.
There are two different copper oxide formula's:2Cu + O2 -> 2CuO (black Copper(II) oxide)or4Cu + O2 -> 2Cu2O (red Copper(I) oxide)
Copper, sulfur, and oxygen can combine to form copper sulfate, which has the chemical formula CuSO4.
Copper nitrate contains copper, nitrogen, and oxygen elements. The chemical formula for copper nitrate is Cu(NO3)2.
The difference in mass between the copper and the copper oxide is 0.31 g. To find the moles of oxygen, we need to convert this mass difference to moles. The molar mass of Cu is 63.55 g/mol and the molar mass of O is 16.00 g/mol. The ratio of Cu to O is 1:1, so the simplest formula of the copper oxide is CuO.
Copper reacts with oxygen in the air to form copper oxide.
Copper Sulphate is composed of copper, sulfur, and oxygen. The chemical formula is CuSO4.
2Cu + O2 ==> 2CuO product is copper(II) oxide4Cu + O2 ==> 2Cu2O product is copper(I) oxide
The simplest formula for antimony and oxygen is Sb2O3.
There are two different copper oxide formula's:2Cu + O2 -> 2CuO (black Copper(II) oxide)or4Cu + O2 -> 2Cu2O (red Copper(I) oxide)
Copper (Cu) Oxygen (O) Carbon (C) The chemical formula for it is CuCO3
Copper, sulfur, and oxygen can combine to form copper sulfate, which has the chemical formula CuSO4.
Chemical formula for this compound is CuO. It contains the elements Copper and Oxygen. It is a red colored compound.
Copper(II) oxide is composed of two elements: copper and oxygen. Its chemical formula is CuO, indicating the ratio of copper to oxygen atoms in the compound.
A crystal of copper sulfate contains copper, sulfur and oxygen.
Copper sulfate has CuSO4 as its formula. Copper sulfate is also written copper(II) sulfate. Remember that Copper sulfate contains Copper, Sulfate and Oxygen because anything ending with 'ate' therefore contains oxygen