c well actually I remember being tought this but I cant remember it 100
Hello!
We know that by the Law of Avogrado, for each mole of substance we have 6.02*10²³ atoms, if:
The molar mass of of magnesium = 24.30 g/mol
If:
1 mol we have 6.02*10²³ atoms
1 mole of Mg we have 24.30 g
Then we have:
24.30 g ------------- 6.02*10²³ atoms
x ----------------------- 7.43*10²² atoms
I Hope this helps, greetings ... DexteR! =)
Using the equation gpe = mgh
(Gravitation Potential Energy = mass x acceleration due to gravity which is 10 on earth x height)
Gpe = 8kg x 10 x 10m = 800
Answer: Concentration of the chemist's sodium chloride solution is 34.4 mol/L.
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute
= volume of solution in ml
Given : moles of = 6.89
volume of solution = 200 ml
Putting in the values we get:
Thus the concentration of the chemist's sodium chloride solution is 34.4 mol/L.