Free Printable WorksheetScienceGrade 11Science CurriculumAP Chem Unit 8; NGSS HS-PS1-2 and HS-PS1-7 connections; CCSS HSN-Q.A.1-3 and HSA-CED.A.1

11.105 Acid Strength, Molecular Structure, and Periodic Trends Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Chemistry Science worksheet provides structured practice on 11.105 Acid Strength, Molecular Structure, and Periodic Trends. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Acid Strength, Molecular Structure, and Periodic Trends: Predict relative acid strength using bond polarity, bond strength, electronegativity, resonance, and oxyacid structure. Aligned to NGSS, CCSS, AP Chemistry/Pre-AP Chemistry, and representative state chemistry framework crosswalks AP Chem Unit 8; NGSS HS-PS1-2 and HS-PS1-7 connections; CCSS HSN-Q.A.1-3 and HSA-CED.A.1 - Acid Strength, Molecular Structure, and Periodic Trends Chemistry Standards Crosswalk: National: AP Chem Unit 8; NGSS HS-PS1-2 and HS-PS1-7 connections; CCSS HSN-Q.A.1-3 and HSA-CED.A.1. State frameworks: TX TEKS 112.43(c)(12); FL SC.912.P.8.8 and acid-base benchmarks; MA chemistry acid-base standards; GA and VA acids/bases/solutions standards; CA/NY/NJ chemistry connections.

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Chemistry

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 11.105 Acid Strength, Molecular Structure, and Periodic Trends skill assessments:

Problem 1Difficulty: Mastery

Which pair of acids best demonstrates an inductive effect that weakens with distance?

AHI is stronger than HF.

BHClO4 is stronger than HClO3.

CPhenol is stronger than cyclohexanol.

D2-chlorobutanoic acid is stronger than 4-chlorobutanoic acid.

Solution & Explanation:The chlorine substituent withdraws electron density through sigma bonds, and that effect fades with distance. A chlorine closer to CO2H stabilizes the carboxylate more strongly.

Problem 2Difficulty: Mastery

An unknown oxyacid has one O-H group and three additional terminal oxygen atoms on the same central atom. Which conjugate-base feature should make it relatively strong?

ANegative charge must stay fixed on the hydrogen atom after H+ is lost.

BTerminal oxygens prevent any resonance in the conjugate base.

CNegative charge can be delocalized over several oxygen atoms after H+ is lost.

DThe acid strength is determined only by the number of hydrogen atoms.

Solution & Explanation:Multiple terminal oxygens allow resonance delocalization and electron withdrawal. These features stabilize the conjugate base and strengthen the acid.

Problem 3Difficulty: Mastery

Which explanation best predicts why H2Te is stronger than H2O even though oxygen is more electronegative?

AOxygen is more electronegative, so H2O must be stronger in every context.

BThe H-Te bond is much weaker and Te2- character is larger and more polarizable than O2- character.

CTellurium is larger, so it pulls bonding electrons toward hydrogen more strongly.

DThe two acids are equal because both contain two hydrogens.

Solution & Explanation:Down group 16, bond strength and anion size dominate over electronegativity. Larger, more polarizable conjugate bases and weaker bonds increase acidity.

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Chemistry Science students. It aligns with educational standard AP Chem Unit 8; NGSS HS-PS1-2 and HS-PS1-7 connections; CCSS HSN-Q.A.1-3 and HSA-CED.A.1 (National: AP Chem Unit 8; NGSS HS-PS1-2 and HS-PS1-7 connections; CCSS HSN-Q.A.1-3 and HSA-CED.A.1. State frameworks: TX TEKS 112.43(c)(12); FL SC.912.P.8.8 and acid-base benchmarks; MA chemistry acid-base standards; GA and VA acids/bases/solutions standards; CA/NY/NJ chemistry connections.).