Chemistry
04.01.2020 00:00
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How many moles of argon are present if there are 1.23 x 10^20 atoms?
How many moles of argon are present if there are 1.23 x 10^20 atoms?
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puremousetail
4,5(10 marks)
2.04×10⁻⁴ moles of Ar
Explanation:
We begin from this knowledge:
1 mol of substance has 6.02×10²³ particles
Let's solve this by a rule of three:
6.02×10²³ atoms are contained in 1 mol of Ar
1.23×10²⁰ atoms must be contained in (1.23×10²⁰ . 1) / 6.02×10²³ =
2.04×10⁻⁴ moles of Ar
Anisanene
4,9(74 marks)
What language is even this Oop i DONT know good luck
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