Determining Empirical Formulas Worksheet Answer Key Chapter 7 The Simplest or Empirical Formula Section A Determine the empirical formula for each compound whose percentage composition is shown below 1 43 C and 57 O 2 40 3 K 26 7 Cr and 33 0 O Answers to Worksheet 8 Empirical Formulas To calculate empirical formulas follow the steps outlined below assume percentages
Determining Empirical Formula What is the empirical formula lowest whole number ratio of the compounds below 1 75 carbon 25 hydrogen 2 52 7 potassium 47 3 chlorine 3 22 1 aluminum 25 4 phosphorus 52 5 oxygen 4 13 magnesium 87 bromine 5 32 4 sodium 22 5 sulfur 45 1 oxygen Determine the empirical formulas for compounds with the following percent compositions a 15 8 carbon and 84 2 sulfur b 40 0 carbon 6 7 hydrogen and 53 3 oxygen 17 72 N and 6 33 H by mass with a molar mass of about 240 g mol Determine the molecular formula of the dye Answer C 15 H 15 N 3 Contributors Paul Flowers
Determining Empirical Formulas Worksheet Answer Key
Determining Empirical Formulas Worksheet Answer Key
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Empirical Formula
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Empirical And Molecular Formula Practice Solutions Docsity
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Show your work for the calculation of empirical formula here Excessive physical activity lactic acid molecular mass 90 08 g per mole forms in muscle tissues and is responsible for muscle soreness Elemental analysis shows that this compound has 40 0 carbon 6 71 hydrogen and 53 3 oxygen Determine the empirical formula of lactic acid Solution To calculate percent composition we divide the experimentally derived mass of each element by the overall mass of the compound and then convert to a percentage C 7 34 gC 12 04gcompound 100 61 0 C 7 34 g C 12 04 g c o m p o u n d 100 61 0
Determine both the empirical formula and the molecular formula of the compound given that the molar mass is 237 g mol cCQ 12 01 B MA 34 937 a 53 35 14 A compound has a molar mass of 86 g mol and has the percent composition by mass of 55 8 C 37 2 O and 7 0 H Determine the empirical formula and the molecular formula 7 H 233 2 33 Empirical formula worksheet To print or download this file click the link below Empirical Formula Worksheet pdf PDF document 1 83 MB 1921394 bytes
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Determining Empirical Formula Worksheet 1 A solvent is found to be 50 0 oxygen 37 5 carbon and 12 5 hydrogen What is the empirical formula of this solvent 2 A particular sugar is determined to have the following composition 40 0 carbon 6 7 hydrogen and 53 5 oxygen Determine the empirical formula of this sugar molecule 3 It is convenient to consider 1 mol of C 9 H 8 O 4 and use its molar mass 180 159 g mole determined from the chemical formula to calculate the percentages of each of its elements C 9molC molarmassC molarmassC 9H 18O 4 100 9 12 01g mol 180 159g mol 100 108 09 g mol 180 159g mol 100 C 60 00 C
Directions Find the empirical formula and name for each of the following A compound is 24 7 Calcium 1 2 Hydrogen 14 8 Carbon and 59 3 Oxygen Write the empirical formula and name the compound A compound is 21 20 Nitrogen 6 06 Hydrogen 24 30 Sulfur and 48 45 Oxygen Write the empirical formula and name the compound The ratio is 1 000 mol of iron to 1 500 mol of oxygen Fe 1 O 1 5 Finally multiply the ratio by two to get the smallest possible whole number subscripts while still maintaining the correct iron to oxygen ratio 2 Fe1O1 5 Fe2O3 2 Fe 1 O 1 5 Fe 2 O 3 The empirical formula is Fe 2 O 3
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Empirical And Molecular Formulas Worksheet 1 1 The Percentage
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Determining Empirical Formulas Worksheet Answer Key - Empirical formula worksheet To print or download this file click the link below Empirical Formula Worksheet pdf PDF document 1 83 MB 1921394 bytes