Chemical properties can be observed without changing the substance
1 answer:
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Answer:
<h3>The answer is 0.23 moles</h3>Explanation:
To find the number of moles in a substance given it's number of entities we use the formula
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
We have the final answer as
<h3>0.23 moles</h3>Hope this helps you
Answer: 3.05 grams
Explanation:
To find the mass in grams, we need to use Avogadro's number and the molar mass of lithium.
Avogadro's number: 6.022×10²³ atoms/mol
Molar mass: 6.94 g/mol