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[PDF File]Chapter 1 Lecture Notes Significant Figures and …
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How many sig figs are written in the measurement? a. 1 b. 2 c. 3 d. 4 e. no correct answer How many digits are known with certainty? How many are estimated? ... micro µ 10-6 = 0.000 001 nano n 10-9 = 0.000 000 001 pico p 10-12 = 0.000 000 000 001 atto a 10-15 = 0 ...
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[PDF File]Significant Figures and Error Analysis
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1.05 ± 0.01 g/mL (0.008 may be rounded to 0.01). Significant Figures in Measurements The number of significant figures in a quantity is the number of digits--other than the zeros that
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[PDF File]Measurements, Significant Figures, and Unit …
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0.001 = 10 ‐ 3 thousandth ... Hint: Answer should be rounded to 4 sig figs because 0.2450 m has 4 sig figs . 8 3. If a person weighs 68.2 kg, how many pounds (lbs) is that? Hint: Don’t forget to round to the correct number of significant figures. 4. If 1 inch = 2.54 cm, how many cm (centimeters) are there in …
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[PDF File]Rules for Significant Figures (sig figs, s.f.)
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A. Read from the left and start counting sig figs when you encounter the first non-zero digit 1. All non zero numbers are significant (meaning they count as sig figs) 613 has three sig figs 123456 has six sig figs 2. Zeros located between non-zero digits are significant (they …
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[PDF File]A Short Guide to Signiﬁcant Figures
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0.001o C has only 1 signiﬁcant ﬁgure, 0.012 g has 2 signiﬁcant ﬁgures. (4) Zeroes to the right of a decimal point in a number are signiﬁcant: 0.023 mL has 2 signiﬁcant ﬁgures, 0.200 g has 3 signiﬁcant ﬁgures. (5) When a number ends in zeroes that are not to the right of a decimal point, the zeroes are not necessarily signiﬁcant:
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[DOC File]Standardization of a NaOH Solution with Potassium Hydrogen ...
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1. Mass accurately (to within 0.0001 g) between 0.7 and 0.9 g of KHP into a tared plastic weighing dish. Note: If the mass of KHP taken exceeds 0.9 g, the titration may require more than 50 mL of titrant, making it necessary to refill the buret and thereby introducing two more buret reading errors. 2.
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[DOC File]adehne.weebly.com
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The result has the same number of sig figs as the least precise data point. 4.56 x 1.4 = 6.38, the 1.4 has 2 sig figs so answer is 6.4. 2. Addition and subtraction. The result has the same number of decimal places as the least precise data point. 12.11 + 18.0 + 1.013 = 31.123 (18.0 has 1 decimal place) = 31.1. Rules for rounding. 1.
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[DOC File]Rules For Significant Figures
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Zeros between non-zero digits are significant. Ex: 3004 has 4 significant figs. Zeros to the left of the first non-zero digit are not significant. Ex: 0.004 has 1 significant fig. If a number ends in zeros to the right of the decimal point, those zeros are significant. Ex: The number 40.0 has 3 significant figures
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[DOCX File]Answer the following questions on density and experimental ...
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0.001 342 94 g to four sig. figs. 49 203.03 g to three sig. figs. 0.000 000 775 2 mg to two sig. figs. 0.000 293 749 0 in to four sig. figs. 3400 kg to one sig. fig. Part 3: Perform each of the following calculations and express the answer to the . correct number of significant figures.
20.00 how many sig fig

[DOCX File]OK, How Does it Work? - Ms. Petrauskas' Class - Home
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0.001 oC has only 1 significant figure,0.012 g has 2 significant figures. (4) Trailing zeroes that are also to the right of a decimal point in a number are significant: 0.0230 mL has 3 significant figures,0.20 g has 2 significant figures.
0.043 how many sig figs

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0.00470 has 3 sig figs (Use the rules if you would like, but I like the Atlantic-Pacific Method better than the rules!) “Cheat Sheet”/ Atlantic-Pacific Method:
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Find the number of significant digits in the following:
1.23 x 104 in3 0.022 m 5) 743.001 dkg ( 0.0562 dkg = 1.32 x 104 6) 4,789.33 N x (6,871.00 m)-1 x [(2 x 102) m]-1 = 0.003 N/m2 7) 55,601km ( (348 s x 3.0 s) = 53 km/s2 8) 98.777cm x 20.033 cm x 111 cm x (0.6577 cm)-1 = 3.34 x 105 cm2. 1. How many sig. figs. are in each of the following numbers? a.) 19.0 cm __ 3 ____ b.) 9,010 in __ 3
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[DOC File]Lab 1-2 Sig Fig
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315.2 has 4 sig figs - When a 0 is significant or not, refer to the following table: Significant. Not Significant - middle. zeros ALWAYS count. 2. 0. 9 has 3 sig figs. 1. 000. 5 has 5 sig figs - ending. zeros WITH a decimal point are significant. 4. 00. has 3 sig figs. 2. 0.00. has 4 sig figs.4. 00. has 3 sig figs - beginning zeros. are NEVER ...
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[DOC File]Lab 1-2 Sig Fig
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315.2 has 4 sig figs - When a 0 is significant or not, refer to the following table: Significant. Not Significant - middle. zeros ALWAYS count. 2. 0. 9 has 3 sig figs. 1. 000. 5 has 5 sig figs - ending. zeros WITH a decimal point are significant. 4. 00. has 3 sig figs. 2. 0.00. has 4 sig figs.4. 00. has 3 sig figs - beginning zeros. are NEVER ...
chemistry significant figures

[DOCX File]General Chemistry Semester 1 Study Guide
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2. If phosphorous-32 has a half-life of 14.3 days, how many days will it take for a radioactive sample to decay to 1/8 its size? 42.9
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0 001 how many sig figs