How many particles does 2 moles of H2O have?
1 answer:
<h2>Answer:</h2>
<em>Hello, </em>
<h3><u>QUESTION)</u></h3>Whatever the chemical entity, one mole of an entity contains 6.02 x 10²³ entities, this is the Avogadro constant (Na).
<em>N = 2 x Na</em>
- N = 2 x 6.02 x 10²³
- N = 1.204 x 10²⁴
There are therefore 1.204 x 10²⁴ molecules of water in 2 moles of water.
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Answer:
44 g
Explanation:
The formula for the number of moles (n) is equal to .
Since we need to find the mass, we derive it from the formula of the number of moles and we get that mass = n x molecular weight .
The molecular weight of = 12 g/mol (from the carbon) + 19x4 g/mol (from the 4 fluorine atoms)= 88 g/mol
We plug in the numbers in the derived formula for the mass and we get :
mass = n x molecular weight = 0.5 mol x 88 g/mol = 44 g