Q2 Hello there, How are you doing experts? I need some help here, MY Experiment
ID: 743488 • Letter: Q
Question
Q2Hello there,
How are you doing experts?
I need some help here,
MY Experiment was"SYNTHESIS OF ZINC IODIDE"
Zn(s)+I2(s)-->ZnI2(s)
I used 2 g of zinc and 2 g of Iodide.
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THESE ARE MY DATA, I NEED TO USE THEM TO GET TO THE ANSWERS FOR THE QUESTIONS BELOW:
Data Table 4-1: Masses of Reactants
Measurement --> Mass
1- Mass of empty boiling tube-->24.972 g
2- Mass of boiling tube + zinc-->26.97g
3- Mass of boiling tube + zinc + iodine ---> 29.01g
4- Mass of zinc reactant --->2.00g
5- Mass of iodine reactant ---> 2.00g
Table 4-2: Masses of species after Reaction
Measurement--------> Boiling tube (g)-----> 50 mL beaker (g)
1- Mass of empty vessel-->24.97 g ---->26.04
2- Mass of empty vessel + solid after reaction--> 26.67 ---> 28.67
3- Mass of solid--->1.73 ---> 2.63
4- Identity of final solid---> Zinc--> Zinc Iodide
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I NEED TO ANSWER THIS QUESTION DEPENDING ON THE PREVUES TABLES:
1- Determine the limiting reactant and calculate the theoretical yield of zinc iodide?
I really need some helps here.
Thanks for everything
Explanation / Answer
My answer makes assumptions about this data: 3- Mass of solid--->1.73 ---> 2.63 4- Identity of final solid---> Zinc--> Zinc Iodide I assume you mean 1.73 grams of Zinc, and 2.63 grams of zinc iodide solid [Your data doesn't obey the conservation of mass, so I assume there are impurities in this mass] A) The total mass of reactants used is 2.63 grams. You can tell by the mass of the product you collected. HOWEVER, another way of calculating this is by the mass of zinc you appear to have left, and by the initial mass of reactants. 4.00-1.73 = 2.27 grams of reactants used. B) Sum the masses in line 3. This is 1.73+2.63 = 4.36 grams of solids isolated after reaction. As i noted, this is more than the mass of your reactants (4 grams) so it violates conservation of mass. You probably have impurities in your collected solids, possibly including water weight.
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