Answer:
What is the question more specific and then I will answer it
Atomic mass of sodium is 22.9 g/mol
atomic mass of chloride is 35.45 g/mol
sodium chloride is 22.99 + 35.45= 58.44 g/mol
The simplest ratio of the constituent elements
Answer:
0.417 mol could be extracted from a medal that weighs 115 grams
Explanation:
Our Olympic medal weighs 115 g and we know that 71.5% is gold so how much from this medal is gold?
100 % ____ 115 g
71,5 % ____ 82.22 g
Molar mass of Au is 196.97 g/m
Mass / Molar mass = Moles
82.22 g / 196.97 g/m = 0.417 moles