IB Chemistry - Topic 1 - Stoichiometry

Quiz
•
Chemistry
•
11th Grade - University
•
Medium
Standards-aligned
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
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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