A student performs this experiment but forgets to remove air bubbles from the NaOH buret valve. (a) Would the measured volume of NaOH added in the back-titration be incorrectly high or low? (b) How would this error affect the results of the experiment? Question 2 options:   (a) incorrectly low (b) % CaCO3 incorrectly high   (a) incorrectly high (b) % CaCO3 incorrectly high   (a) incorrectly low (b) % CaCO3 incorrectly low   (a) incorrectly high (b) % CaCO3 incorrectly low

Question

A student performs this experiment but forgets to remove air bubbles from the NaOH buret valve. (a) Would the measured volume of NaOH added in the back-titration be incorrectly high or low? (b) How would this error affect the results of the experiment?

Question 2 options:

 

(a) incorrectly low (b) % CaCO3 incorrectly high

 

(a) incorrectly high (b) % CaCO3 incorrectly high

 

(a) incorrectly low (b) % CaCO3 incorrectly low

 

(a) incorrectly high (b) % CaCO3 incorrectly low

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