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Mole Conversions

Chemistry

10th - 11th Grade

NGSS covered

Used 2K+ times

Mole Conversions
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This quiz focuses on mole conversions, a fundamental quantitative chemistry topic appropriate for grades 10-11. The questions systematically assess students' understanding of the relationships between moles, molecules, atoms, grams, and molar mass using Avogadro's number (6.02 x 10²³). Students must demonstrate mastery of several interconnected concepts: calculating molecular quantities using Avogadro's number, determining molar masses from atomic masses and chemical formulas, converting between mass and moles using molar mass as a conversion factor, and understanding the multi-step process required for complex unit conversions. The problems require students to manipulate scientific notation, apply dimensional analysis, and recognize that molar mass serves as the bridge between the microscopic world of atoms and molecules and the macroscopic world of measurable quantities in grams. This quiz was created by a classroom teacher who designed it for students studying chemistry in grades 10-11. The assessment serves multiple instructional purposes, functioning effectively as a formative assessment tool to gauge student understanding before moving to more complex stoichiometry problems, or as targeted practice for students who need reinforcement with these essential quantitative skills. Teachers can deploy this quiz as a warm-up activity to activate prior knowledge, assign it as homework to reinforce classroom instruction, or use it as a review tool before unit exams. The questions align with chemistry standards that emphasize quantitative relationships in chemical systems, specifically addressing learning objectives related to using the mole concept to analyze chemical compositions and calculate quantities in chemical reactions, supporting standards such as NGSS HS-PS1-7 and common state chemistry standards focusing on molar relationships and dimensional analysis.

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11 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many molecules are in 2.5 mol of NaCl?

1.51x1023
146
4.15
1.51x1024

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many molecules of sugar (C6H12O6) are in a mole?

24 molecules
180 molecules
180 g
6.02 x 1023 molecules

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many atoms of carbon are in 6.00g of carbon?

1.20x1024atoms C
6.02x1023atoms C
3.01x1023atoms C
1.50x1023atoms C

Tags

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many grams are in 1.2 x 1024 molecules of CO?

28 grams
56 grams
6.02 grams
1.2 grams

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many steps are in a gram to mole conversion?

1
2
3
4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many moles are in 3.01 x 1022 atoms of magnesium?

0.05 moles
1.81 x 1046 moles
5.00 x 1021 moles
5 moles

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If an atom of Fluorine has an atomic mass of 19 amu, it has a Molar mass of ____

19 lbs.
19 kg
How am I supposed to know?
19 g/mol

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