Chemistry 101 Final Exam
CHEMISTRY 101 FINAL EXAM
SECTIONS 572-580 Dr. Joy Heising
FORM 4N
December 7, 2001
Directions: 1. Fill out your scantron sheet. a. Do not forget to include your SIGNATURE and ID number. b. Dept = CHEM, Course No. = 101 c. If you want your scores posted, mark A under the option column 2. Use a #1 or #2 pencil for marking the answer sheets. circles completely. 3. DO NOT write on the envelope. 4. Read each question carefully, then choose the best answer for each question. There is no penalty for guessing. 5. You may write on the exam questions. The last page is a sheet of scrap paper. 6. When finished, put the scanning sheet back in the envelope and turn it in. You may keep the exam questions. 7. This examination consists of 40 multiple choice questions (6 points each). total point value for the exam is 240 points. Some helpful equations/constants: PV = nRT R = 0.0821 atm·L mol·K R = 62.4 torr·L mol·K The Fill in the appropriate
P1 V1 = P2 V2 T1 T2 Ptot = Pa + Pb + … ntot = na + nb + …
N1 V1 = N2 V2
1N
1. Which statement is INCORRECT? In one mole of Li2 CO3 there are a) b) c) d) e) 2 atoms of lithium 13.8 g of lithium 6.022 x 1023 formula units 6.022 x 1023 C atoms 3 moles of oxygen
2. An unknown binary tantalum sulfide compound contains 73.8%.Ta and 26.2% S. The empirical formula of the compound is: a) TaS b) TaS2 c) TaS3 d) Ta2 S3 e) Ta3 S4 3. Which of the following name and formula combinations is INCORRECT? a) N2 O4 b) H2 O2 c) CuO d) HClO 4 e) Cs2 SO4 dinitrogen tetraoxide hydrogen peroxide copper (I) oxide perchloric acid cesium sulfate
4. What is the oxidation number of Fe in Fe3 (PO4 )2 ? a) +2 b) +3 c) +4 d) +5 e) +6
5. What is the oxidation number of Mn in H2 MnO3 ? a) +2 b) +3 c) +4 d) +5 e) +6
2N
6. Balance the following equation with the smallest whole number coefficients. What is the coefficient for HCl in the balanced equation? SnS2 a) 4 b) 6 c) 3 d) 12 e) 2 + HCl à H2 SnCl6 + H2 S
7. Consider the following
SECTIONS 572-580 Dr. Joy Heising
FORM 4N
December 7, 2001
Directions: 1. Fill out your scantron sheet. a. Do not forget to include your SIGNATURE and ID number. b. Dept = CHEM, Course No. = 101 c. If you want your scores posted, mark A under the option column 2. Use a #1 or #2 pencil for marking the answer sheets. circles completely. 3. DO NOT write on the envelope. 4. Read each question carefully, then choose the best answer for each question. There is no penalty for guessing. 5. You may write on the exam questions. The last page is a sheet of scrap paper. 6. When finished, put the scanning sheet back in the envelope and turn it in. You may keep the exam questions. 7. This examination consists of 40 multiple choice questions (6 points each). total point value for the exam is 240 points. Some helpful equations/constants: PV = nRT R = 0.0821 atm·L mol·K R = 62.4 torr·L mol·K The Fill in the appropriate
P1 V1 = P2 V2 T1 T2 Ptot = Pa + Pb + … ntot = na + nb + …
N1 V1 = N2 V2
1N
1. Which statement is INCORRECT? In one mole of Li2 CO3 there are a) b) c) d) e) 2 atoms of lithium 13.8 g of lithium 6.022 x 1023 formula units 6.022 x 1023 C atoms 3 moles of oxygen
2. An unknown binary tantalum sulfide compound contains 73.8%.Ta and 26.2% S. The empirical formula of the compound is: a) TaS b) TaS2 c) TaS3 d) Ta2 S3 e) Ta3 S4 3. Which of the following name and formula combinations is INCORRECT? a) N2 O4 b) H2 O2 c) CuO d) HClO 4 e) Cs2 SO4 dinitrogen tetraoxide hydrogen peroxide copper (I) oxide perchloric acid cesium sulfate
4. What is the oxidation number of Fe in Fe3 (PO4 )2 ? a) +2 b) +3 c) +4 d) +5 e) +6
5. What is the oxidation number of Mn in H2 MnO3 ? a) +2 b) +3 c) +4 d) +5 e) +6
2N
6. Balance the following equation with the smallest whole number coefficients. What is the coefficient for HCl in the balanced equation? SnS2 a) 4 b) 6 c) 3 d) 12 e) 2 + HCl à H2 SnCl6 + H2 S
7. Consider the following