CHEM 1212 Final LSU
1. What is the proper disposal method:
a. reaction mixture
b. used pipet
c. cracked/chipped beaker
d. excess chemical
e. used filter paper: a. appropriate waste container
b. trash can
c. broken glass box
d. appropriate waste container
e. trash can
2. When is it okay to remove splash proof goggles?: After everyone has put away all chemicals and
glassware
3. Which of the following are appropriate to wear in lab?
a. lab apron
, CHEM 1212 Final LSU
b. leggings
c. jeans
d. scrub pants
e. knee length shorts
f. midriff top
g. t shirt
h. tank top: a, c, d, g
4. Which chemicals used in exp. 2 are toxic?: NaOH, H2SO4
5. Identify the type of reaction:
A + B --> A^+ + B^-: oxidation-reduction reaction
6. Identify the typre of reaction:
A + B --> AB: combination (synthesis) reaction
7. What should you do if chemical gets in your eye?: Wash your eye for 15 minutes with
water from the eyewash station and notify the TA
8. What should you do if chemical gets on your skin?: Wash the skin for 15 minutes with
water and notify the TA
9. Write, balance, & classify the equation: When green FeO (s) is heated in the presence of O2 (g), if
, CHEM 1212 Final LSU
forms a rust-brown solid, Fe2O3 (s): 4FeO (s) + O2 (g)--> 2FeO3 (s)
combination/synthesis
10.In exp 3, what was the chmical formula of the black solid?: CuO
11.In exp 3, what was the chemical formula of the sky blue soln?: CuSO4
12.In exp 3, what was the mole ratio of copper sacch and sodium sacch?: 1 copper sacch : 2
sodium sacch
, CHEM 1212 Final LSU
13.Cooper & Zach did exp 3 dissolving 3.46g of copper acetate and adding
7.74g od sodium sacch. They recovered 6.88g of product. In their calcu- lations, they found 9.28g shou
have been produced. Their calculation of (6.88g/9.28g)(100%)=74.1%
What is the percient, theoretical, and actual yield?: percient: 74.1 theoretical: 9.28
actual: 6.88
14.Cooper, Zach, and Nate did exp. 3 dissolving 3.80g of copper acetate and adding 8.60g of
sodium sacch.
What is the theoretical yield of the product?
mm of copper acetate: 199.65g/mol mm od
sodium sacch: 223.18g/mol mm of product:
535.59g/mol: 10.19g
15.Zach and Nate calculated the theoretical yield as 6.30g of copper sacch. They recovered 4.49g.
What is the percent yield?: 71.2%
16. In a similar experiment, Cooper, Zach, and Nate started with 2.85g of copper acetate and
6.77g of sodium sacch and obtained 6.17g of copper sacch.
1. What is the proper disposal method:
a. reaction mixture
b. used pipet
c. cracked/chipped beaker
d. excess chemical
e. used filter paper: a. appropriate waste container
b. trash can
c. broken glass box
d. appropriate waste container
e. trash can
2. When is it okay to remove splash proof goggles?: After everyone has put away all chemicals and
glassware
3. Which of the following are appropriate to wear in lab?
a. lab apron
, CHEM 1212 Final LSU
b. leggings
c. jeans
d. scrub pants
e. knee length shorts
f. midriff top
g. t shirt
h. tank top: a, c, d, g
4. Which chemicals used in exp. 2 are toxic?: NaOH, H2SO4
5. Identify the type of reaction:
A + B --> A^+ + B^-: oxidation-reduction reaction
6. Identify the typre of reaction:
A + B --> AB: combination (synthesis) reaction
7. What should you do if chemical gets in your eye?: Wash your eye for 15 minutes with
water from the eyewash station and notify the TA
8. What should you do if chemical gets on your skin?: Wash the skin for 15 minutes with
water and notify the TA
9. Write, balance, & classify the equation: When green FeO (s) is heated in the presence of O2 (g), if
, CHEM 1212 Final LSU
forms a rust-brown solid, Fe2O3 (s): 4FeO (s) + O2 (g)--> 2FeO3 (s)
combination/synthesis
10.In exp 3, what was the chmical formula of the black solid?: CuO
11.In exp 3, what was the chemical formula of the sky blue soln?: CuSO4
12.In exp 3, what was the mole ratio of copper sacch and sodium sacch?: 1 copper sacch : 2
sodium sacch
, CHEM 1212 Final LSU
13.Cooper & Zach did exp 3 dissolving 3.46g of copper acetate and adding
7.74g od sodium sacch. They recovered 6.88g of product. In their calcu- lations, they found 9.28g shou
have been produced. Their calculation of (6.88g/9.28g)(100%)=74.1%
What is the percient, theoretical, and actual yield?: percient: 74.1 theoretical: 9.28
actual: 6.88
14.Cooper, Zach, and Nate did exp. 3 dissolving 3.80g of copper acetate and adding 8.60g of
sodium sacch.
What is the theoretical yield of the product?
mm of copper acetate: 199.65g/mol mm od
sodium sacch: 223.18g/mol mm of product:
535.59g/mol: 10.19g
15.Zach and Nate calculated the theoretical yield as 6.30g of copper sacch. They recovered 4.49g.
What is the percent yield?: 71.2%
16. In a similar experiment, Cooper, Zach, and Nate started with 2.85g of copper acetate and
6.77g of sodium sacch and obtained 6.17g of copper sacch.
