3.1.5.4 Effect of concentration + pressure
Authored by Stanton Wertjes
Chemistry
9th - 12th Grade
NGSS covered
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Line X in the diagram represents the volume (V) of gas formed with time (t) in a reaction between an excess of magnesium and aqueous sulfuric acid.
Which line represents the volume of hydrogen formed, at the same temperature and pressure, when the concentration of sulfuric acid has been halved?
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The experiment was repeated at 20 °C using a 250 cm3 conical flask.
Which statement is correct about the time taken for the cross to disappear when using the larger conical flask?
The time taken will not be affected by using the larger conical flask.
The time taken will be decreased by using the larger conical flask.
The time taken will be increased by using the larger conical flask.
It is impossible to predict how the time taken will be affected by using the larger conical flask.
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