When 5.5 g of CaCl2 is dissolved in 1 L of solution, the concentration of CaCl2...
When 5.5 g of CaCl2 is dissolved in 1 L of solution, the concentration of CaCl2 is 0.05 molar (0.05 M CaCl2). The solution is also described as being 0.05 M Ca2+(aq) and 0.10 M Cl−(aq).
The same solution could be referenced as [Ca2+] = 0.05 M.
The circle represents a unit volume. It can be interpreted as “1 L”.
Exploring the Model
12. What do the brackets [ ] mean?
13. Explain why the concentration of chloride is twice that of the calcium ion.
14. Show the calculation required to obtain the 0.05 M CaCl2 (aq) value.
15. Rank the three drawings from least concentrated to most concentrated.
16. Describe the definition of concentration using the drawing as a guide. Don’t reiterate the definition from the book, describe the definition using language that someone could understand after reviewing the drawing.
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When 5.5 g of CaCl2 is dissolved in 1 L of solution, the
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