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[DOC File]Chemistry 11 Problem Solving in Chemistry
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This is done with the use of significant figures (sig figs). There are four key skills that you must develop… Identifying sig figs. Rounding off numbers. Applying sig fig rules to addition and subtraction. Applying sig fig rules to multiplication and division. Identifying sig figs. All digits are significant except zeros at the beginning of a ...
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[DOCX File]Significant Figures: Uncertainty in Measurement
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Round sig figs anytime you switch between the addition/subtraction rule and the multiplication/division rule. Scientific Notation: Put all answers in scientific notation to the correct number of significant figures.
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[DOC File]Significant Figures (a
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Rules for deciding the number of significant figures in a measured quantity: (1) All nonzero digits are significant: 1.234 g has 4 sig figs, 1.2 g has 2 sig figs. (2) Zeroes between nonzero digits are significant: 1002 kg has 4 sig figs, 3.07 mL has 3 sig figs.
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[DOC File]SIGNIFICANT FIGURES
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Rules for Multiplication and Division (think number!) The number of significant figures should NOT be greater than the number of significant figures in the least precise factor: 6.2 cm x 3.44 cm = 21 cm2. Rules for Rounding: A. If the digit to be dropped is less than five, simple eliminate it. 134.3 g to 3 sig. Figs. = 134 g. B.
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[DOC File]Rules for Using Significant Figures in Mathematical Operations
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How do you determine the number of sig figs in a number or measurement? ... Rules for Significant Figures. ... When performing a calculation that involves both multiplication or division and addition or subtraction, you must round in between steps. That is, you must round between moving from a multiplication or division step to an addition or ...
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[DOC File]Significant Figures - Mr. Bigler
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For multiplication, division, and everything else (except for addition & subtraction), round your answer off to the same number of sig figs as the number that has the fewest. For example, (Notice that we used a decimal point at the end to show that both of the digits digits in the answer “50. ” are significant.) A silly (correct) example of ...
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[DOC File]Significant Figures Practice Worksheet
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Multiplication & Division = Least number of . Sig Figs. Rule for . Addition & Subtraction = Least number of . decimal places (highest value) Perform the following calculations and round according to the rule above. 1) 8.20 + 2 = 2) 13.59 + 23.25 + 20 = 3) 42.828 + 67.4629 =
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[DOC File]Significant Figures
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0.62 miles / km (2 sig figs) 7. Rules Specific for Zeroes Rule Examples Zeros appearing between nonzero digits are significant 40.7 L has three sig figs. 87 009 km has five sig figs Zeros appearing in front of nonzero digits are not significant 0.095 987 m has five sig figs. 0.0009 kg has one sig fig Zeros at the end of a number and to the ...
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[DOC File]Sig Figs Cheat Sheet - PC\|MAC
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In this case, your final answer is limited to one sig fig to the right of the . decimal or 25.3 (rounded up). C. Rules for multiplication/division problems . The number of sig figs in the final calculated value will be the same as that of the quantity with the fewest number of sig figs used in the calculation. EXAMPLE:
sig fig rules when dividing and multiplying

[DOC File]Rules for Counting Significant Figures
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For Multiplication and division. the number of significant figures in the result is the same as the number of significant figures in that measurement used to obtain the result that has the smallest (or smaller, if only two numbers are involved) number of significant figures in it. Example 1: 4800 / 300.0 = 16. 2 sig figs. 2 sig. figs. 4 sig. figs.
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Sig figs addition and multiplication rules