In an experiment, hydrochloric acid reacted with different volumes of sodium thiosulfate in water. A yellow precipitate was formed during the reaction. A cross drawn at the base of each flask
became gradually invisible due the formation of this yellow precipitate. The time taken for the cross to become invisible was recorded. A partial record of the experiment is shown
Experimental Record
Flask Volume of Volume of
Volume of Time
HCI Sodium Thiosulfate Water
1
10 mL
10 ml
40 mL
14 seconds
2
10 mL
20 ml
30 mL
3
10 mL
30 ml
20 ml
4
10 ml
40 ml
10 ml
Based on your knowledge of factors that affect the rates of chemical reactions, predict the trend in the last column of the experimental record. Use complete sentences to explain the trend you
predicted. You do not have determine exact values for time; just describe the trend you would expect (increase or decrease) and why it occurs. (5 points)
Answers: 1
Chemistry, 22.06.2019 13:00
Is 9 correct? and can someone me with 10? itβs due tomorrow, you
Answers: 1
Chemistry, 22.06.2019 22:00
Imagine one batch of soup (batch βaβ) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch βbβ) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.
Answers: 2
In an experiment, hydrochloric acid reacted with different volumes of sodium thiosulfate in water. A...
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