Experimenters started with excess copper(II) chloride, but a limited amount (855 mg) of potassium iodide. 2CuCl2 + 4KI → 2CuI + 4KCI + I2 1) Calculate the theoretical yield mass of copper(1) iodide, in milligrams. [ Select ] 2) In the lab, they were able to experimentally produce 326 mg of copper(1) iodide. What is the percent yield? [ Select ] 4. Question 22 3 Si(s) +2 N2 (g) → Si3N4 (s) In this synthesis equation for production of trisilicon tetranitride (used to create a tough, break-resistant material for strong plane turbine 75.0 g of silicon are combined with excess nitrogen gas. The molar mass of trisilicon tetranitride is 140.3 g/mol. 1) Calculate the theoretical yield of product. (round to the nearest whole number; enter only a number) O0Y vield anproximately what mass of Si3N4 is actually produced?

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Chapter1: Chemical Foundations
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The following chemical reaction was performed in a laboratory to produce copper(l) iodide for a biochemistry investigation.
Experimenters started with excess copper(II) chloride, but a limited amount (855 mg) of potassium iodide.
2CuCl2 + 4KI 2Cul + 4KCI+ I2
1) Calculate the theoretical yield mass of copper(1) iodide, in milligrams.
[ Select ]
2) In the lab, they were able to experimentally produce 326 mg of copper(I) iodide. What is the percent yield?
[ Select ]
4 pts
Question 22
3 Si(s) +2 N2 (g) → Si3N4(s)
In this synthesis equation for production of trisilicon tetranitride (used to create a tough, break-resistant material for strong plane turbines),
75.0 g of silicon are combined with excess nitrogen gas. The molar mass of trisilicon tetranitride is 140.3 g/mol.
1) Calculate the theoretical yield of product.
(round to the nearest whole number; enter only a number)
2) With an 88% yield, approximately what mass of Si3N4 is actually produced?
(round to the nearest whole number; enter only a number)
Transcribed Image Text:The following chemical reaction was performed in a laboratory to produce copper(l) iodide for a biochemistry investigation. Experimenters started with excess copper(II) chloride, but a limited amount (855 mg) of potassium iodide. 2CuCl2 + 4KI 2Cul + 4KCI+ I2 1) Calculate the theoretical yield mass of copper(1) iodide, in milligrams. [ Select ] 2) In the lab, they were able to experimentally produce 326 mg of copper(I) iodide. What is the percent yield? [ Select ] 4 pts Question 22 3 Si(s) +2 N2 (g) → Si3N4(s) In this synthesis equation for production of trisilicon tetranitride (used to create a tough, break-resistant material for strong plane turbines), 75.0 g of silicon are combined with excess nitrogen gas. The molar mass of trisilicon tetranitride is 140.3 g/mol. 1) Calculate the theoretical yield of product. (round to the nearest whole number; enter only a number) 2) With an 88% yield, approximately what mass of Si3N4 is actually produced? (round to the nearest whole number; enter only a number)
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