Tying marshmallows utilising toothpicks together was difficult about building the model
Building the construct was challenging because of the toothpicks used to connect the marshmallows.
• The Salt Model consists of three layers that can be stacked on top of one another to form a NaCl unit cell.
Using the model in two different orientations is possible if the layers are connected.
• As shown by the salt model, the majority of basic inorganic compounds are composed of ions that interchange endlessly rather than discrete molecules.
Little marshmallows could serve as an analogy for the tiny sodium atoms.
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The value of of is 1.7× .
So, option C is correct one.
Calculation,
Number of moles of = mass/molar mass = 0.45/278.1 = 1.618× moles
Concentration of and ion
Molarity of = Number of moles of solute /volume in lit
Molarity of = 1.618× moles /0.1 lit = 0.0162 M
→ + 2
For certain amount of , twice this amount of ion formed.
The concentration of ion formed = 2× 0.0162 M = 0.0324 M
Now,
of = [ ] = 0.0162 × = 1.7× .
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Answer: m = 24.31 g/mol · 1.13 mol
Explanation: 2 mol HCl use 1 mol Mg.
Magnesium is used 0.5 · 2.26 mol = 1.13 mol
M(Mg) = 24.31 g/ mol