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Pre Test Day 2

Quiz

(4)
Played 25 %Accuracy 32 Average time 02:34

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For Grade 10 students

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Philippines

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Pre Test Day 2
 

Pre Test Day 2Online version

For Grade 10 students

by Ma'am Dane
1

During the lesson, your teacher will teach you the molar mass that tells the mass of one mole of a substance. What do you think is the unit used for the molar mass?

2

A student is preparing water (H2O) for an experiment. Using the atomic masses H = 1 and O = 16, what is the molar mass of H2O?

3

A laboratory uses carbon dioxide (CO2) insn investigation. Using C = 12 and O = 16, what is the molar mass of CO2?

4

Three students calculated the molar masses of Ammonia (NH2). This is their answer; Anna - 14 g/mol Ben - 17 g/mol Cara - 20 g/mol Using N = 14 and H = 1, whose answer is correct?

5

Paolo calculated the molar mass of H₂O as 17 g/mol. Which explanation best describes his mistake?

6

A student says, "Carbon dioxide (CO₂) and water (H₂O) have the same molar mass because both contain oxygen." How should you evaluate this statement?

7

During a laboratory activity, four groups calculated the molar mass of carbon dioxide (CO₂) using the atomic masses C = 12 and O = 16. ● Group A: 28 g/mol ● Group B: 32 g/mol ● Group C: 44 g/mol ● Group D: 48 g/mol Which group's calculation should the teacher accept?

8

Your group needs to choose a compound with a molar mass of about 58.5 g/mol for a laboratory activity. Which compound should your group select?

9

A student is making a guide on how to calculate molar mass. Which sequence should be included in the guide?

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