Moles - Percent Composition

Presentation

•

Chemistry

•

9th - 12th Grade

•

Medium

•

NGSS

HS-ESS2-5, HS-PS1-7

Standards-aligned

Michaela Bratsch

Used 27+ times

FREE Resource

5 Slides • 4 Questions

Moles - Percent Composition

Multiple Choice

What is the percent by mass of fluorine in CaF₂(gram-formula mass = 78 g/mol)?

24%

49%

51%

65%

Multiple Choice

What is the percent composition by mass of sulfur in the compound MgSO₄ (gram formula mass = 120 g/mol)?

20%

27%

46%

53%

Multiple Choice

A compound is a hydrate when it...

is composed of only hydrogen and oxygen

is a state of water

contains water in the compound

repels water from the compound

Multiple Choice

How do you calculate the percent by mass of an element in a compound?

Add up the mass of protons and neutrons, then divide by two.

Divide the mass of the element by the total mass of the compound and multiply by 100.

Add up the atomic masses of the elements, then divide by the number of the elements.

Find the relative mass of any atom by adding the number of protons to the number of neutrons, then dividing by that total number.

Moles - Percent Composition

Show answer

Auto Play

Slide 1 / 9

SLIDE

Similar Resources on Wayground

7 questions

Lesson 6.8: Mole to Mole Conversions

Presentation

•

9th - 12th Grade

8 questions

7.4 Arc Length

Presentation

•

9th - 12th Grade

7 questions

Metric System and SI Unit Intro

Presentation

•

9th - 12th Grade

8 questions

Groups 1 and 17 of the P.T.

Presentation

•

9th - 12th Grade

10 questions

Stoichiometry Lesson

Presentation

•

9th - 12th Grade

6 questions

Average Atomic Mass Calculations

Presentation

•

9th - 12th Grade

8 questions

Specific Heat Warm-Up Review

Presentation

•

9th - 12th Grade

6 questions

Chemistry Unit 3 Lesson 3 Calories

Presentation

•

10th - 12th Grade

Popular Resources on Wayground

10 questions

Safety Day 2026 – Student Review

Quiz

•

9th Grade

21 questions

Continents and Oceans

Quiz

•

6th Grade

20 questions

Parts of Speech

Quiz

•

5th Grade

16 questions

Subject & Predicate

Quiz

•

5th Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

12 questions

Map Skills

Quiz

•

3rd Grade

22 questions

Continents and Oceans

Quiz

•

5th Grade

15 questions

Rounding Decimals

Quiz

•

5th Grade

Discover more resources for Chemistry

20 questions

electron configurations and orbital notation

Quiz

•

9th - 12th Grade

20 questions

Periodic Table Trends

Quiz

•

11th Grade

25 questions

Writing and Naming Binary Ionic compounds

Quiz

•

10th Grade

20 questions

COUNTING ATOMS

Quiz

•

10th Grade

50 questions

Unit 3: Atomic Assault Summative Review

Quiz

•

11th Grade

20 questions

Physical or Chemical Change/Phases

Quiz

•

8th Grade - University

15 questions

Periodicity Module Exam Practice Quiz

Quiz

•

9th - 12th Grade

20 questions

Naming Ionic Compounds

Quiz

•

10th Grade