Free Printable WorksheetScienceGrade 11Science CurriculumNGSS HS-PS1-3; AP Chem Unit 3; CCSS HSN-Q.A.1-3 and HSS-ID

11.55 Dalton's Law and Gas Mixtures Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Chemistry Science worksheet provides structured practice on 11.55 Dalton's Law and Gas Mixtures. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Dalton's Law and Gas Mixtures: Calculate partial pressures and total pressure in gas mixtures, including gases collected over water. Aligned to NGSS, CCSS, AP Chemistry/Pre-AP Chemistry, and representative state chemistry framework crosswalks NGSS HS-PS1-3; AP Chem Unit 3; CCSS HSN-Q.A.1-3 and HSS-ID - Dalton's Law and Gas Mixtures Chemistry Standards Crosswalk: National: NGSS HS-PS1-3; AP Chem Unit 3; CCSS HSN-Q.A.1-3 and HSS-ID. State frameworks: TX TEKS 112.43(c)(7), (10), (11); FL SC.912.P.8.1, P.8.6; NY HS-PS1-9/10 connections; MA/CA/NJ chemistry structure-property standards; GA/VA states and gas standards.

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 11.55 Dalton's Law and Gas Mixtures skill assessments:

Problem 1Difficulty: Mastery

A wet gas mixture over water has total pressure 742 torr and water vapor pressure 20 torr. The dry gas is 25.0% CO2 by mole. If CO2 is absorbed while the sample remains over water at the same temperature and volume, what final wet pressure is expected?

A562 torr

B542 torr

C722 torr

D181 torr

Solution & Explanation:The dry gas pressure is 742 - 20 = 722 torr. CO2 contributes 0.250 x 722 = 180.5 torr, leaving 541.5 torr dry gas. Because the sample remains over water, add 20 torr water vapor: 541.5 + 20 = 561.5 torr, or 562 torr.

Problem 2Difficulty: Mastery

A planned particle diagram shows 12 blue N2 particles, 6 red O2 particles, and 2 gray Ar particles in a container at total pressure 1.60 atm. What is the O2 partial pressure?

A0.300 atm

B0.960 atm

C0.480 atm

D1.60 atm

Solution & Explanation:The diagram shows 20 total particles and 6 O2 particles, so XO2 = 6/20 = 0.300. PO2 = 0.300 x 1.60 atm = 0.480 atm.

Problem 3Difficulty: Mastery

In a 4.00 L vessel at 298 K, O2 has partial pressure 0.210 atm and mole fraction 0.105 in the mixture. What is the total number of moles of gas? Use R = 0.0821 L atm/(mol K).

A0.0343 mol

B0.327 mol

C0.0654 mol

D3.27 mol

Solution & Explanation:First find total pressure: Ptotal = PO2/XO2 = 0.210/0.105 = 2.00 atm. Then ntotal = PV/RT = (2.00)(4.00)/[(0.0821)(298)] = 0.327 mol.

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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 NGSS HS-PS1-3; AP Chem Unit 3; CCSS HSN-Q.A.1-3 and HSS-ID (National: NGSS HS-PS1-3; AP Chem Unit 3; CCSS HSN-Q.A.1-3 and HSS-ID. State frameworks: TX TEKS 112.43(c)(7), (10), (11); FL SC.912.P.8.1, P.8.6; NY HS-PS1-9/10 connections; MA/CA/NJ chemistry structure-property standards; GA/VA states and gas standards.).