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Vikentia [17]
3 years ago
9

How many moles of magnesium is 1.25 x 1023 atoms of magnesium?

Chemistry
1 answer:
andrew-mc [135]3 years ago
4 0
The moles of magnesium in 1.25 x 1023 are 20.8 mol.
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Answer:

six noble gases

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How many moles of tin atoms are there in 250 grams of tin?
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A chemical reaction is shown below:
BabaBlast [244]

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Mass = 8.46 g

Explanation:

Given data:

Mass of water produced = ?

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Mass of oxygen = 15 g

Solution:

Chemical equation:

C₆H₁₂O₆ + 6O₂     →   6H₂O + 6CO₂

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now we will compare the moles of water with oxygen and glucose.

               C₆H₁₂O₆           :            H₂O

                   1                   :              6

                 0.11                :           6/1×0.11 = 0.66

                   O₂               :            H₂O

                   6                   :              6

                 0.47                :           0.47

Less number of moles of water are produced by oxygen thus it will limit the yield of water and act as limiting reactant.

Mass of water produced:

Mass = number of moles × molar mass

Mass = 0.47 mol  ×18 g/mol

Mass = 8.46 g

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