First, determine the number of moles of gold.
Number of moles =
Given mass of gold =
Molar mass of gold = 196.97 g/mol
Put the values,
Number of moles of gold =
= or
Now, molarity =
Put the values, volume of ocean =
Molarity =
=
Thus, average molar concentration =
Answer:
m = 671 grams
Explanation:
Given that,
No of moles, n = 4.9
Molar mass of Barium, M = 137 g
Mass divided by molar mass is equal to no of moles. It can be given by the formula as follows :
or
m = 671 grams
So, the total mass of the sample of Barium is 671 grams.
- Telleurium ( Te) is the chemical symbol
- electron is 52,
- there are 2 electron in 5s
Since it is a phase change, use the mHfusion equation.