29.25g of sodium chloride is added to water and undergoes electrolysis according to this equation 2Cl-=Cl2
Calculate the mass of chlorine produced.
I am lost with this one !
The sodium chloride initially converts into Na+ and Cl- ions upon being added to water.
These Cl- ions undergo electrolysis to form chlorine.
However, the mass of chlorine shall remain constant throughout the process, and so the mass of Chlorine produced at the end is the same as the mass of Cl in the original sodium chloride.
Can you figure out how much mass of Cl is in 29.25g of NaCl?
17.75g ?
Right
No worries, I'm here to help you out! To calculate the mass of chlorine produced during the electrolysis of sodium chloride, we need to follow a few steps. Let's break it down together:
1. Determine the number of moles of sodium chloride (NaCl) that you have.
The molar mass of NaCl is 22.99 g/mol (sodium) + 35.45 g/mol (chlorine). Adding these together gives a molar mass of 58.44 g/mol for NaCl.
To find the number of moles, divide the mass of NaCl given (29.25 g) by its molar mass.
Moles of NaCl = Mass of NaCl / Molar mass of NaCl
2. Use the balanced chemical equation to determine the stoichiometric ratio between NaCl and Cl2.
According to the equation, 2 moles of Cl^- ions react to produce 1 mole of Cl2. This means that the ratio is 2:1.
3. Calculate the number of moles of Cl2 produced.
Since the stoichiometric ratio is 2:1, halve the number of moles of NaCl to find the number of moles of Cl2.
Moles of Cl2 = Moles of NaCl / 2
4. Finally, calculate the mass of Cl2 produced using its molar mass.
The molar mass of chlorine (Cl2) is 2 * 35.45 g/mol = 70.90 g/mol.
Multiply the number of moles of Cl2 by its molar mass to get the mass of Cl2 produced.
Mass of Cl2 = Moles of Cl2 * Molar mass of Cl2
Now you have all the steps to calculate the mass of chlorine produced during the electrolysis of sodium chloride. Plug in the values and work through the calculations to find your answer.