using the titration equation below calculate the number of moles of molecular iodine (I2) that must have reacted with the sodium thiosulfate
I2(aq)+2S2O3^2-(aq) ---->S4O6^2-(aq)+2I-(aq)
Can someone plz help me to figure this out with steps and explanation if possible thanks =]
I could if you provided enough information but you didn't provide any numbers. The problem is asking for numbers from a) your experiment OR b) the problem you must work.
Take the moles of S2O3^2- you calculated from whatever (that is M x L = moles), then
moles S2O3^2- x (1 mole I2/2 moles S2O3^2-) = moles S2O3^2- x (1/2) = moles I2.
To calculate the number of moles of molecular iodine (I2) that reacted with sodium thiosulfate, we need to use the balanced chemical equation and information about the reaction.
The balanced chemical equation is:
I2(aq) + 2S2O3^2-(aq) ā S4O6^2-(aq) + 2I-(aq)
In the equation, we can see that 1 molecule of I2 reacts with 2 molecules of S2O3^2-. This means that the molar ratio between I2 and S2O3^2- is 1:2.
To calculate the number of moles of I2, we need the number of moles of S2O3^2- that reacted. Let's assume we have x moles of S2O3^2-.
According to the equation, the molar ratio between S2O3^2- and I2 is 2:1. Therefore, if x moles of S2O3^2- reacted, we would have x/2 moles of I2 reacting.
So, the number of moles of I2 that reacted is x/2.
To calculate the number of moles of molecular iodine (I2) that reacted with the sodium thiosulfate (Na2S2O3), you need to use the balanced equation provided and the concept of stoichiometry.
Step 1: Write down the balanced equation:
I2(aq) + 2S2O3^2-(aq) -> S4O6^2-(aq) + 2I-(aq)
Step 2: Determine the mole ratio:
From the balanced equation, you can see that the mole ratio between I2 and S2O3^2- is 1:2. This means that for every 1 mole of I2, there are 2 moles of S2O3^2- involved in the reaction.
Step 3: Identify the known information:
You need to know the amount (in moles or other units) of sodium thiosulfate (S2O3^2-) used in the reaction.
Step 4: Convert the known information to moles:
Suppose you have x moles of S2O3^2- that reacted.
Step 5: Use the mole ratio to determine the moles of I2:
Since the mole ratio of I2 to S2O3^2- is 1:2, for every 2 moles of S2O3^2- used, 1 mole of I2 reacts. Therefore, the moles of I2 can be calculated as: x/2.
Step 6: Calculate the answer:
If you know the value of x (moles of S2O3^2-), you can simply divide it by 2 to get the moles of I2 that reacted.
Let's say you have used 0.2 moles of S2O3^2- in the reaction. Applying the calculations from Step 6, the number of moles of I2 that reacted would be 0.2/2 = 0.1 moles.
Remember to substitute your own known values into the equation to get an accurate result.