I believe is 8.9 if rounded to the nearest hundredth but if not I’ll give it the whole answer and round to whatever is asking you the whole answer is 8.9399375975
Answer:
1 mol of copper
Explanation:
The mass of the oxide formed is the total mass less the crucible mass, so it is:
100.52 - 88.00 = 12.52 g
It means that 10.00 g is from copper, and 2.52 g is from oxygen. The molar mass of copper is 63.50 g/mol, and the molar mass of oxygen is 16 g/mol. The number of moles (n) is the mass divided by the molar mass:
n Cu = 10.00/63.50 = 0.158 moles
n O = 2.52/16 = 0.158 moles
So, there is the same number of moles of each element, and the product must be: CuO, which has 1 mol of copper.
Answer:
<u>A) Solute</u>
Explanation:
In forming a solution, the substance which is dissolved by the action of the solvent is called <u>solute</u>.
The answer is c) Electrical energy
Chromium nitride
Chromium nitride is a chemical compound of chromium and nitrogen with the formula CrN.
