how many moles are present in 4.6g od Na? (Atomic mass of Na=23)
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Answered by
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Given Mass = 4.6g
Number of moles = Given mass ÷ Atomic mass.
Number of moles = 4.6 ÷ 23
Number of moles = 0.2
Number of moles = Given mass ÷ Atomic mass.
Number of moles = 4.6 ÷ 23
Number of moles = 0.2
Answered by
6
Given,
4.6 g of Na
The atomic mass of Na = 23
To find,
The number of moles present in 4.6 g of Na.
Solution,
The number of moles present in 4.6 g of Na will be 0.2.
We can easily solve this numerical by following the given steps.
Now, we know that Na is the symbol for the element, sodium. The atomic mass is given to be 23 g.
The formula to find the number of moles:
Number of moles = Given weight of the element/atomic mass of the element
Number of moles = 4.6/23
Number of moles = 0.2
Hence, the number of moles present in 4.6 g of Na is 0.2.
( More to know: the atomic number of an element is equal to its number of protons or electrons. And the atomic mass of an element is the sum of its protons and neutrons.)
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