Question

find the ratio of mass of combining calcium chloride when dissolved in water dissociates​

Answer 1

Answer:

Calcium chloride when dissolved in water dissociates into its ions according to the following equation

Calcium chloride when dissolved in water dissociates into its ions according to the following equation. CaCl2 (aq) → Ca2+ (aq) + 2Cl– (aq) Calculate the number of ions obtained from CaCl2 when 222 g of it is dissolved in water

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Answer 2

Answer:

ANSWER

1mole→111g of CaCl

2

∴222g of CaCl

2

is equivalent to 2 moles of CaCl

2

Since 1 formula unit CaCl

2

gives 3 ions, therefore, 1 mol of CaCl

2

will give 3moles of ions

2 moles of CaCl

2

would give 3×2=6 moles of ions.

No. of ions = No. of moles of ions X Avogadro number

=6×6.022×10

23

=36.132×10

23

=3.6132×10

24

ions

Hence the correct option is D.