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Chem formulas for homework, Cheat Sheet of Chemistry

useful forms for chem 101 includes formulas

Typology: Cheat Sheet

2019/2020

Uploaded on 08/01/2024

ava-sanchez
ava-sanchez 🇺🇸

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Worksheet)on)Naming,)Empirical)and)Molecular)Formulas,)and)Chemical)
Equations)
)
1. Name'the'following:'
a. Na2S'
b. HC2H3O2(aq)'
c. SnO'
d. NO2'
e. SrCl2'
f. Cr3(PO4)2'
g. XeO3'
h. H2SO3(aq)'
'
2. Write'the'formula'for'the'following:'
a. copper(II)'iodate'
b. hydrocyanic'acid'
c. diboron'tetrachloride'
d. lithium'permanganate'
e. iron(III)'hydroxide'
f. tetranitrogen'tetraselenide'
g. magnesium'bromate'hexahydrate''
h. perchloric'acid'
'
3. If'a'sample'of'sucrose'(C12H22O11)'weighs'90.'mg,'then'calculate'the'number'of'
oxygen'atoms'in'this'sample.'
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'
4. Calculate'the'empirical'formula'of'the'following'compounds:'
a. Ibuprofen'(75.69%'C,'8.80%'H,'15.51%'O)'
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b. Vanillin'(63.15%'C,'5.30%'H,'31.55%'O)'
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'
c. 2.128'g'Be,'7.557'g'S,'15.107'g'O'
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'
'
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Worksheet on Naming, Empirical and Molecular Formulas, and Chemical

Equations

  1. Name the following: a. Na 2 S b. HC 2 H 3 O 2 ( aq ) c. SnO d. NO 2 e. SrCl 2 f. Cr 3 (PO 4 ) 2 g. XeO 3 h. H 2 SO 3 ( aq )
  2. Write the formula for the following: a. copper(II) iodate b. hydrocyanic acid c. diboron tetrachloride d. lithium permanganate e. iron(III) hydroxide f. tetranitrogen tetraselenide g. magnesium bromate hexahydrate h. perchloric acid
  3. If a sample of sucrose (C 12 H 22 O 11 ) weighs 90. mg, then calculate the number of oxygen atoms in this sample.
  4. Calculate the empirical formula of the following compounds: a. Ibuprofen (75.69% C, 8.80% H, 15.51% O) b. Vanillin (63.15% C, 5.30% H, 31.55% O) c. 2.128 g Be, 7.557 g S, 15.107 g O

Worksheet on Naming, Empirical and Molecular Formulas, and Chemical

Equations

  1. Calculate the mass percent composition of nitrogen in each of the following: a. N 2 O b. NO c. NO 2 d. HNO 3
  2. Write a balanced chemical equation for each reaction: a. Solid copper reacts with solid sulfur to form solid copper(I) sulfide. b. Solid iron(III) oxide reacts with hydrogen gas to form iron and liquid water. c. Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas. d. Gaseous ammonia (NH 3 ) reacts with oxygen gas to form gaseous nitrogen monoxide and gaseous water.