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Deffense [45]
3 years ago
11

The atomic number of lithium is 3. How many neutrons does an atom of lithium have if it is represented by the symbol shown below

?
7Li
Chemistry
1 answer:
Mademuasel [1]3 years ago
5 0
If it is not an isotope then it has around 21 neutrons
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The molarity of the solutions are as follows:

  • solution B has the highest molarity
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  • solution F and D will have the same molarity
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<h3>What is molarity of a solution?</h3>

The molarity of a solution is the amount in moles of a substance present in a given volume of solution.

From the image of the solution given:

  • solution B has the highest molarity
  • solutions A, D and F have the same molarity
  • when solutions A and C are mixed, the resulting solution have a lower molarity than B
  • solution F and D will have the same molarity after 75 mL and 50 mL of water are added to each respectively
  • the molarity of B is 12/50 = 4/16.7. Volume of water required to be evaporated = 25 - 16.7 = 8.3 mL

Therefore, the molarity of the solutions depends on the moles of substance present per given volume of solution.

Learn more about molarity at: brainly.com/question/24305514

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