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UIUC / Chemistry / CHEM 101 / What is formula for percent mass?

What is formula for percent mass?

What is formula for percent mass?

Description

School: University of Illinois at Urbana - Champaign
Department: Chemistry
Course: Introductory Chemistry
Professor: Gretchen adams
Term: Fall 2016
Tags: General Chemistry and nomenclature
Cost: 25
Name: Chem 101, Week 2 Notes
Description: Ch. 8 Notes - Chemical Composition. These notes also contain Nomenclature rules.
Uploaded: 09/18/2016
3 Pages 141 Views 0 Unlocks
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"}.lst-kix_yn4tu8569n8e-0 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-0}.lst-kix_v2xjyw60ga5t-4 > li:before{content:"- "}.lst-kix_u5a9iryqkcfb-4 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-4,lower-latin) ". "}.lst-kix_u5a9iryqkcfb-5 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-5,lower-roman) ". "}ol.lst-kix_qhhysov82u2u-0.start{counter-reset:lst-ctn-kix_qhhysov82u2u-0 0}ol.lst-kix_yn4tu8569n8e-6.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-6 0}.lst-kix_qhhysov82u2u-0 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-0}.lst-kix_qhhysov82u2u-4 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-4,lower-latin) ". "}.lst-kix_u5a9iryqkcfb-6 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-6,decimal) ". "}ol.lst-kix_u5a9iryqkcfb-2.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-2 0}.lst-kix_qhhysov82u2u-5 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-5,lower-roman) ". "}ol.lst-kix_qhhysov82u2u-8.start{counter-reset:lst-ctn-kix_qhhysov82u2u-8 0}.lst-kix_u5a9iryqkcfb-8 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-8,lower-roman) ". "}.lst-kix_yn4tu8569n8e-1 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-1}.lst-kix_qhhysov82u2u-6 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-6,decimal) ". "}.lst-kix_qhhysov82u2u-8 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-8,lower-roman) ". "}.lst-kix_u5a9iryqkcfb-7 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-7,lower-latin) ". "}.lst-kix_v2xjyw60ga5t-0 > li:before{content:"- "}.lst-kix_qhhysov82u2u-7 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-7,lower-latin) ". "}ol.lst-kix_u5a9iryqkcfb-5.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-5 0}.lst-kix_qhhysov82u2u-2 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-2}ol.lst-kix_u5a9iryqkcfb-7.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-7 0}.lst-kix_yn4tu8569n8e-1 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-1,lower-latin) ". "}.lst-kix_yn4tu8569n8e-0 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-0,decimal) ". "}.lst-kix_yn4tu8569n8e-2 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-2,lower-roman) ". "}.lst-kix_u5a9iryqkcfb-2 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-2,lower-roman) ". "}.lst-kix_u5a9iryqkcfb-0 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-0,decimal) ". "}.lst-kix_u5a9iryqkcfb-1 > li:before{content:"" counter(lst-ctn-kix_u5a9iryqkcfb-1,lower-latin) ". "}.lst-kix_yn4tu8569n8e-3 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-3}ol.lst-kix_yn4tu8569n8e-7.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-7 0}ol.lst-kix_qhhysov82u2u-2.start{counter-reset:lst-ctn-kix_qhhysov82u2u-2 0}ol.lst-kix_yn4tu8569n8e-1.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-1 0}.lst-kix_yn4tu8569n8e-4 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-4}ol.lst-kix_yn4tu8569n8e-7{list-style-type:none}ol.lst-kix_yn4tu8569n8e-6{list-style-type:none}ol.lst-kix_yn4tu8569n8e-5{list-style-type:none}ol.lst-kix_yn4tu8569n8e-4{list-style-type:none}ol.lst-kix_u5a9iryqkcfb-0.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-0 0}ol.lst-kix_qhhysov82u2u-3.start{counter-reset:lst-ctn-kix_qhhysov82u2u-3 0}ol.lst-kix_yn4tu8569n8e-8{list-style-type:none}.lst-kix_u5a9iryqkcfb-1 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-1}ol.lst-kix_yn4tu8569n8e-3{list-style-type:none}ol.lst-kix_yn4tu8569n8e-2{list-style-type:none}ol.lst-kix_yn4tu8569n8e-1{list-style-type:none}ol.lst-kix_yn4tu8569n8e-0{list-style-type:none}ol.lst-kix_u5a9iryqkcfb-2{list-style-type:none}ol.lst-kix_u5a9iryqkcfb-3{list-style-type:none}ol.lst-kix_u5a9iryqkcfb-4{list-style-type:none}.lst-kix_v2xjyw60ga5t-7 > li:before{content:"- "}ol.lst-kix_u5a9iryqkcfb-5{list-style-type:none}ol.lst-kix_u5a9iryqkcfb-6{list-style-type:none}ol.lst-kix_u5a9iryqkcfb-7{list-style-type:none}ol.lst-kix_u5a9iryqkcfb-8{list-style-type:none}.lst-kix_qhhysov82u2u-7 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-7}.lst-kix_v2xjyw60ga5t-6 > li:before{content:"- "}.lst-kix_u5a9iryqkcfb-4 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-4}.lst-kix_u5a9iryqkcfb-7 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-7}.lst-kix_qhhysov82u2u-4 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-4}ol.lst-kix_u5a9iryqkcfb-0{list-style-type:none}ol.lst-kix_yn4tu8569n8e-0.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-0 0}.lst-kix_v2xjyw60ga5t-8 > li:before{content:"- "}ol.lst-kix_u5a9iryqkcfb-1{list-style-type:none}.lst-kix_qhhysov82u2u-1 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-1}ol.lst-kix_u5a9iryqkcfb-6.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-6 0}ul.lst-kix_v2xjyw60ga5t-8{list-style-type:none}ul.lst-kix_v2xjyw60ga5t-6{list-style-type:none}ul.lst-kix_v2xjyw60ga5t-7{list-style-type:none}ul.lst-kix_v2xjyw60ga5t-4{list-style-type:none}ul.lst-kix_v2xjyw60ga5t-5{list-style-type:none}ol.lst-kix_yn4tu8569n8e-2.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-2 0}ul.lst-kix_v2xjyw60ga5t-2{list-style-type:none}ul.lst-kix_v2xjyw60ga5t-3{list-style-type:none}.lst-kix_u5a9iryqkcfb-6 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-6}.lst-kix_u5a9iryqkcfb-5 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-5}.lst-kix_yn4tu8569n8e-7 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-7}.lst-kix_qhhysov82u2u-6 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-6}.lst-kix_qhhysov82u2u-8 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-8}.lst-kix_qhhysov82u2u-5 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-5}ul.lst-kix_v2xjyw60ga5t-0{list-style-type:none}ul.lst-kix_v2xjyw60ga5t-1{list-style-type:none}ol.lst-kix_qhhysov82u2u-7.start{counter-reset:lst-ctn-kix_qhhysov82u2u-7 0}ol.lst-kix_qhhysov82u2u-1.start{counter-reset:lst-ctn-kix_qhhysov82u2u-1 0}.lst-kix_yn4tu8569n8e-6 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-6}ol.lst-kix_yn4tu8569n8e-8.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-8 0}ol.lst-kix_yn4tu8569n8e-5.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-5 0}ol.lst-kix_qhhysov82u2u-4.start{counter-reset:lst-ctn-kix_qhhysov82u2u-4 0}ol.lst-kix_u5a9iryqkcfb-1.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-1 0}.lst-kix_yn4tu8569n8e-8 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-8,lower-roman) ". "}.lst-kix_u5a9iryqkcfb-3 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-3}ol.lst-kix_u5a9iryqkcfb-4.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-4 0}.lst-kix_yn4tu8569n8e-4 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-4,lower-latin) ". "}.lst-kix_yn4tu8569n8e-3 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-3,decimal) ". "}ol.lst-kix_u5a9iryqkcfb-8.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-8 0}.lst-kix_u5a9iryqkcfb-8 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-8}.lst-kix_qhhysov82u2u-3 > li{counter-increment:lst-ctn-kix_qhhysov82u2u-3}.lst-kix_yn4tu8569n8e-5 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-5,lower-roman) ". "}ol.lst-kix_qhhysov82u2u-5.start{counter-reset:lst-ctn-kix_qhhysov82u2u-5 0}.lst-kix_yn4tu8569n8e-6 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-6,decimal) ". "}ol.lst-kix_yn4tu8569n8e-4.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-4 0}.lst-kix_yn4tu8569n8e-7 > li:before{content:"" counter(lst-ctn-kix_yn4tu8569n8e-7,lower-latin) ". "}.lst-kix_u5a9iryqkcfb-2 > li{counter-increment:lst-ctn-kix_u5a9iryqkcfb-2}ol.lst-kix_yn4tu8569n8e-3.start{counter-reset:lst-ctn-kix_yn4tu8569n8e-3 0}.lst-kix_yn4tu8569n8e-5 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-5}.lst-kix_yn4tu8569n8e-2 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-2}ol.lst-kix_u5a9iryqkcfb-3.start{counter-reset:lst-ctn-kix_u5a9iryqkcfb-3 0}.lst-kix_yn4tu8569n8e-8 > li{counter-increment:lst-ctn-kix_yn4tu8569n8e-8}.lst-kix_qhhysov82u2u-3 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-3,decimal) ". "}ol.lst-kix_qhhysov82u2u-6.start{counter-reset:lst-ctn-kix_qhhysov82u2u-6 0}.lst-kix_qhhysov82u2u-2 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-2,lower-roman) ". "}.lst-kix_qhhysov82u2u-1 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-1,lower-latin) ". "}.lst-kix_qhhysov82u2u-0 > li:before{content:"" counter(lst-ctn-kix_qhhysov82u2u-0,decimal) ". "}

Atoms / molecules         ↔        moles                ↔         mass in gramsDon't forget about the age old question of What is the total amount of prime costs?

                                              

                        or                        or

                                            Don't forget about the age old question of What makes a company prosper?

Ex.        How many  molecules are contained in 50.0g water?

        How many Hydrogen atoms are present in the sample?

        

50.0g

1 mol

2.78 mol

molecules of

18.016 g

1 mol

Don't forget about the age old question of onedrive csuf

 molecules

2 H atom

1 molecule

If you want to learn more check out When does a microscope invented?

=

If you want to learn more check out Why were cities thought to be sinful and ba din the 19th century?
If you want to learn more check out What is the solubility in water of lipids?

        % Mass =

Ex.        

        

        

                        = 100%

Ex.        

        

Ex.                                                

                                

                assume 100g of compound

                

        

                        

  •  Nitrogen Oxide

                                simplest whole number ratio

                                                                (empirical formula)

        Molecular Formula = actual formula

        

Ionic compounds “units”                        nonmetals

*metal                                                ・prefixes

・Balance charges                                *molecular formulas / empirical formula

*Empirical formula

Nomenclature Rules

Type I (simple → metal/nonmetal)

  1. Cation                anion

(metal)         (nonmetal)

  1. cation elemental name
  2. Anion - ide ( chloride)

        Ex. kCl →  potassium chloride

Type II (multiple "+" charges )

  1. cation 1st        anion 2nd
  2.  Roman Numerals specify charge cation
  3. Anion - ide

         Ex. PbO Lead (II) oxide

                                 

Type III (nonmetals)

  1. cation named as element
  2. second element as anion
  3. Prefix denotes #of atoms
  4. Leave off mono - on first element

        Ex. CO carbon monoxide (not monocarbon monoxide)

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