Answer these please.

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1. Data:
2. Solution
i)Formula:
ii) Molar mass:
iii) Calculations:
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2. Solution
i) Formula:
ii) Calculations:
1. Data:
2. Solution
i) Formula:
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2. Solution
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ii) Calculations:
The number of moles of water molecules is 2 times the number of moles of Ca(NO₃)₂ . 2H₂O.
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2. Solution:
i) Formulae:
ii) Calculations
1. Data:
2. Solution
i) Formula:
ii) Calculation:
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2. Solution
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ii) Calculations:
25cm³ × (0.1cm/dm)³ = 0.125 dm³
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2. Solution
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