The number of atoms : = 6.02.10²³
<h3>Further explanation</h3>
Given
mass = 20.17 g of Neon
Required
The number of atoms
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
mol Neon :
= mass : Ar Neon
= 20.17 : 20,1797 g/mol
= 0.999 ≈ 1
The number of atoms :
= 1 x 6.02.10²³
= 6.02.10²³
Answer:
To move? I think that's right
Answer: 0.25
Explanation: M = moles of solute / volume of solution (L)
First, you need to calculate the number of moles using the given mass and the molar mass.
15 g74.692 g/mol≈0.20 mol
Then, you can solve for molarity using the molarity equation. The answer should be reported to two significant figures.
M=0.20 mol/ 0.800 L = 0.25 M
Answer:
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Explanation:
A
