The formula tells you the proportion in mols
2 mols of Cl: 1 mol of Pt
Now use the atomic masses:
Cl: 35.5 g/mol
Pt: 195 g/mol
Then you have these equation:
[2*35.5 g Cl] / 195 g Pt = x / 500 kg Pt
Solve for x.
x = (71 g Cl / 195 g Pt) * 500 kg Pt
x = 182 Kg Cl = 182 kg Cl2.
Mass = PROTONS + neutrons. So, 19 +20 = 39.
(Don't confuse yourself between electrons and protons when they are equal because it could be an ion)
Answer:
Answer: a) 20g of H2O (18.02 g/mol) molecules=6.68x10^23
Explanation:
In order to find the amount of molecules of each of the options, we need to follow the following equation.
So, let´s get the number of molecules for each of the options.
the smalest number is in option a)
Best of luck.
The compound FeCl3 is made of one atom and three atoms of chlorine
<u><em>explanation</em></u>
- FeCl3 is made up of two elements.
- that is iron with Fe chemical symbol and chlorine with Cl chemical symbol.
- There are 3 atoms of chlorine in FeCl3 because the subscript in front of Cl in FeCl3 is 3.
I believe the answer is C
