Respuesta :
Limiting reagents are the chemical species that restrict product formation. The amount of sodium chloride that will be formed is 17.3 grams.
What are limiting reagents?
Limiting reagents are chemical reactants that limit the formation of the product in a chemical reaction.
The balanced chemical reaction is shown as,
[tex]\rm CuCl_{2} + 2NaNO_{3} \rightarrow 2NaCl + Cu(NO_{3})_{2}[/tex]
Moles of copper chloride are calculated as:
[tex]\dfrac{15}{134.45} = 0.148\;\rm moles[/tex]
Moles of sodium nitrate are calculated as:
[tex]\dfrac{20}{84.99} = 0.2353\;\rm moles[/tex]
According to the reaction, 1 mole of copper chloride = 2 moles of sodium chloride
So, 0.148 moles of copper chloride = 0.296 moles of sodium chloride
Similarly, 2 moles of sodium nitrate = 2 moles of sodium chloride
So, 0.2353 moles of sodium nitrate = 0.4706 of sodium chloride
Copper chloride will be a limiting reagent as it produces less number of moles of sodium chloride.
Hence the mass of sodium chloride = 0.296 moles
Molar mass of sodium chloride = 58.44 g/mol
Mass of sodium chloride is calculated as:
[tex]0.296 \times 58.44 = 17.29 \;\rm gm[/tex]
Therefore, 17.29 gm of sodium chloride is formed.
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