Chem125-Ellis Chapter 1 Basic Homework Significant Figures

Chem125-Ellis Chapter 1 Basic Homework Significant Figures...

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Chem125-Ellis You are logged in as Camille Billing ( Logout ) You are here NJIT / ► Chem125-Ellis / ► Quizzes / ► Chapter 1 Basic Homework: Significant Figures / ► Review of attempt 5 Chapter 1 Basic Homework: Significant Figures Review of attempt 5 Started on Saturday, 4 September 2010, 08:11 PM Completed on Saturday, 4 September 2010, 08:15 PM Time taken 3 mins 59 secs Marks 24/26 Finish review
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Grade 6.46 out of a maximum of 7 ( 92 %) Question 1 Marks: 2 Measurements are not exact. This is why significant figures are needed. What is the best you can say about the length of the green rectangle? (Feedback is given for each answer) Choose one answer. a. 1 cm b. 1.2 cm c. 1.3 cm d. 1.24 cm This is the best answer. Someone else may say 1.23 or 1.25 cm. These are all good answers and better than 1.2 cm. e. 1.27 cm f. 1.235 cm Correct Marks for this submission: 2/2. Question 2 Marks: 1 How many significant figures are in 33.2? Help: Rules for Significant Figures Answer: Correct Marks for this submission: 1/1.
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