You have seven closed containers, each with equal masses of chlorine gas (Cl₂). You add 10.0 g of sodium to the first sample, 20.0 g of sodium to the second sample, and so on (adding 70.0 g of sodium to the seventh sample). Sodium and chlorine react to form sodium chloride according to the equation 2 Na(s)+Cl₂(g) ⟶ 2NaCl(s)
After each reaction is complete, you collect and measure the amount of sodium chloride formed. A graph of your results is shown below.
a. Explain the shape of the graph.
b. Calculate the mass of NaCl formed when 20.0 g of sodium is used.
c. Calculate the mass of clâ‚‚ in each container.
d. Calculate the mass of NaCl formed when 50.0 g of sodium is used.
e. Identify the leftover reactant, and determine its mass for parts b and d above.

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