Chem 273 Study guides, Class notes & Summaries

CHEM 120 WEEK 8 Final Exam 2023 with correct answers Already graded A+ molarity = moles solute / liters solution 0.25 M = moles NaOH / 0.035 L moles NaOH = 0.00875 moles NaOH 1. (TCO 8) 35.0 mL of 0.25 M NaOH is neutralized by 23.6 mL of an HCl solution. The molarity of the HCl solution is (show your work): (Points : 5) 2. (TCO 1) How many mL are in 3.5 pints? Show your work. (Points : 5) 3.5 pints is equivalent to 1656.116 1 pint = 473.176 ml 3.5 pints* 473.176mL = 1656.116mL 3. (TC...

Portage Learning CHEM 103 Final ExamQuestion 1 Complete the two problems below: 1. Convert 0.0000726 to exponential form and explain your answer. 2. Convert 5.82 x 103 to ordinary form and explain your answer. Answer: 1. Convert 0.0000726 = smaller than 1 = negative exponent, move decimal 5 places = 7.26 x 10-5 2. Convert 5.82 x 103 = positive exponent = larger than 1, move decimal 3 places = 5820 Question 2 Do the conversions shown below, showing all work: 1. 358oK = ? oC 2. 53oC = ...

Portage Learning CHEM 103 Final Exam Study Guide Latest Updated 2023 Question 1 Show the calculation of the percent of each element present in the followingcompounds. Report your answer to 2 places after the decimal. 1. (NH4)2CrO4 2. C8H8NOI 1. %N = 2 x 14.01/152.08 x 100 = 18.43% %H = 8 x 1.008/152.08 x 100 = 5.30% %Cr = 1 x 52.00/152.08 x 100 = 34.20% %O = 4 x 16.00/152.08 x 100 = 42.08% 2. %C = 8 x 12.01/261.05 x 100 = 36.80% %H = 8 x 1.008/261.05 x 100 = 3.09% %N = 1 x 14.01/2...

CHEM 103 MODULE 1 TO 6 EXAM ANSWERS PORTAGE LEARNING LATEST UPDATED 2024 Chem 103 Module 1 Exams Questions and Answer 12 Answered Questions MODULE 1 EXAM Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x -5 o ordin y form and explain your answer. Convert 845.3 = than 1 = positive exponent, move decimal 2 places places = 0.0000321 Question 2 l...

CHEM 103 Module 1, 2, 3, 4, 5, 6, 7 Exam & CHEM 103 Final Exam (2 Versions) (Latest-2023): General Chemistry II: Portage Learning With Verified Questions & Answers MODULE 1 EXAM Question 1 Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10-5 to ordinary form and explain your answer. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8....

Exam CHEM 103 Final Exam (Version-1, Latest-2023)/ CHEM103 Final Exam / CHEM 103 General Chemistry Final Exam/ CHEM103 General Chemistry Final Exam: Portage Learning |100 % Correct Q & A| Final Exam - Requires Respondus LockDown Browser + Webcam Question 1 Complete the two problems below: 1. Convert 0.0000726 to exponential form and explain your answer. 2. Convert 5.82 x 10 3 to ordinary form and explain your answer. Answer: 1.Convert 0.0000726 = smaller than 1 = negative exponent,...

Exam CHEM 103 Final Exam (Version-1, Latest-2023)/ CHEM103 Final Exam / CHEM 103 General Chemistry Final Exam/ CHEM103 General Chemistry Final Exam: Portage Learning |100 % Correct Q & A|Final Exam - Requires Respondus LockDown Browser + Webcam Question 1 Complete the two problems below: 1. Convert 0. to exponential form and explain your answer. 2. Convert 5.82 x 103 to ordinary form and explain your answer. Answer: 1. Convert 0. = smaller than 1 = negative exponent, move decimal ...

Portage Learning CHEM 103 Final ExamQuestion 1 Complete the two problems below: 1. Convert 0.0000726 to exponential form and explain your answer. 2. Convert 5.82 x 103 to ordinary form and explain your answer. Answer: 1. Convert 0.0000726 = smaller than 1 = negative exponent, move decimal 5 places = 7.26 x 10-5 2. Convert 5.82 x 103 = positive exponent = larger than 1, move decimal 3 places = 5820 Question 2 Do the conversions shown below, showing all work: 1. 358oK = ? oC 2. 53oC = ...

sig fig zeros - Answer-1. zeros at beginning NOT signif 2. zeros between ARE SIGNIF 3. zeros at end of number are signif if number contains a decimal point 3.489 x (5.67-2.3) - Answer-3.489 x 3.(3)7 11.75793 12 matter - Answer-composed of mass and must occupy space scales of matter - Answer-macroscopic, microscopic, particulate. scientists think on a particulate scale, observe macroscopically states of matter - Answer-1. change from solid to liquid to gas as temp increases 2. motion of...

CHEM 103 FINAL EXAM.Click this link to access the Periodic Table. This may be helpful throughout the exam. Do the conversions shown below, showing all work: 1. 246oK = ? oC 2. 45oC = ? oF 3. 18oF = ? oK 1. 246oK - 273 = -27 oC oK → oC (make smaller) -273 2. 45oC x 1.8 + 32 = 113 oF oC → oF (make larger) x 1.8 + 32 3. 18oF - 32 ÷ 1.8 = -7.8 + 273 = 265.2 oK oF → oC → oK Question 3 Click this link to access the Periodic Table. This may be helpful throughout the exam. Show the ca...