IB Chemistry - Topic 1 - Stoichiometry

IB Chemistry - Topic 1 - Stoichiometry

11th Grade - University

10 Qs

quiz-placeholder

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IB Chemistry - Topic 1 - Stoichiometry

IB Chemistry - Topic 1 - Stoichiometry

Assessment

Quiz

Chemistry

11th Grade - University

Medium

NGSS
HS-PS1-7, HS-LS1-6

Standards-aligned

Created by

Kevin Loo

Used 68+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the formula for calculating number of moles of atoms?

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

3

6

4.5

9

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tags

NGSS.HS-LS1-6

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

2

3

4

5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A fixed mass of gas has a certain volume at a temperature of 50 °C. What temperature is required to double its volume while keeping the pressure constant?

100 K

323 K

373 K

646 K

Answer explanation

This is based on the ideal gas equations where PV/T is the same between 2 ideal gases.

Don't forget that T has to be converted to Kelvin first! So if we double volume, the temperature also has to double from 50C (which is 323 K), to 646 K.

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Finish this statement of Avogadro's Law:

Equal volumes of all gases, when measured at the same temperature and pressure, ...

...have the same number of particles.

...will react at equal rates.

...will have the same mass.

...have the same density.

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

The graph represents the relationship between two variables in a fixed amount of gas.

Which variables could be represented by each axis?

x: pressure

y: temperature

x: volume

y: temperature

x: pressure

y: volume

x: temperature

y: volume

Answer explanation

While temperature does decrease with increasing volume, it is actually a linear relationship, not an inverse curve as shown.

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