how many moles if gold are present in 49 gram of gold
To determine the number of moles of gold in a given mass, you need to use the formula:
Moles = Mass (g) / molar mass (g/mol)
The molar mass of gold can be found on the periodic table, which is 196.97 g/mol for gold (Au).
Now, let's calculate the number of moles of gold in 49 grams:
Moles = 49 g / 196.97 g/mol
Moles = 0.248 moles
So, there are approximately 0.248 moles of gold present in 49 grams.