Sig figs - Study guides, Class notes & Summaries

LAB 1 INTRO LAB EXCERCISE -Study Error -Precision -SIG FIGS -Construction of Graphs -How to use air track measurement system for motion exercises ... LAB 1: error & accuracy & %error & diff -Error: diff between value of physical quantity determined by experiment and true value -Types of error may occur during an experiment: experimentalist not take the time to be as accurate & detailed -Accuracy: percentage diff or absolute diff -Percentage Error = (Estimated- Actual)/ (Actual) ...

SI unit for Temperature correct answer: C F correct answer: (9/5 C) + 32 C correct answer: 5/9 (F -32) K correct answer: C+273.15 density correct answer: mass/volume 1 mL correct answer: =1cm^3 = 1cc percent error correct answer: difference from known value/known value x 100 sig fig for Addition/Subtraction correct answer: answer has the same number of decimal places as the factor with the least amount of decimal places sig fig rules for multiplication/ division c...

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Significant Figures - 1. Nonzero Integers are always significant. ex: 72.9= 3 sig figs 2. Infinite sig figs for exact numbers. ex: when are measurements exact? 1 L=1000 mL Significant Figures: Zeroes - 1. Leading zeroes are not significant. ex: 0.00234= 3 sig figs 2. Trailing zeroes are not significant ex: 234000= 3 sig figs 3. Unless they come after a decimal point ex: 234.000= 6 sig figs 4. Captive zeroes are always significant ex: 2304= 4 sig figs Sig Figs Multiplication/Division...

True value - The accepted value for a measurement accomplished by repeating measurement or theoretically from first principles Accuracy - How close a measurement is to the true value Precision - How well multiple measurements agree with one another Least sig figs - Rules for mathematical operations: When multiplying or dividing the answer always has the same number of sig figs as the calculation with the _____ Least decimal places - Rules for mathematical operations: When adding or sub...

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chapter 2 sig figs

Chemistry Final ACS Exam Questions And Answers All Correct Accuracy? - ANS Closeness of measurements to the TRUE VALUE of what is being measured Precision? - ANS Closeness of a SET of measurements How do you calculate Percent Error? - ANS I experimental-accepted I ____________________ x 100 accepted value Are zeros in front of non-zero digits significant? - ANS Nope! ex: 0.0071 is only 2 sig figs Are zeros at the end of a number and to the right of the decimal signifi...

CHEM 1465 UTA FINAL REVIEW EXAM QUESTIONS AND VERIFIED ANSWERS...

All of them - what measured quantity have uncertainity? Certain digits - Digits which are not estimated Uncertain digits - Digits which must be estimated True value - The accepted value for a measurement accomplished by repeating measurement or theoretically from first principles Accuracy - How close a measurement is to the true value Precision - How well multiple measurements agree with one another Least sig figs - Rules for mathematical operations: