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
FlaskVolume of
HClVolume of
Sodium ThiosulfateVolume of
WaterTime
110 mL 10 mL40 mL14 seconds
210 mL20 mL30 mL
310 mL30 mL20 mL
410 mL40 mL10 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 to determine exact values for time; just describe the trend you would expect (increase or decrease) and why it occurs. The last trend in the last column should be?
Answers: 3
Chemistry, 21.06.2019 18:20
Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0
Answers: 2
Chemistry, 22.06.2019 04:30
How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?
Answers: 1
Chemistry, 22.06.2019 05:30
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 3
In an experiment, hydrochloric acid reacted with different volumes of sodium thiosulfate in water. A...
Mathematics, 24.06.2021 15:30
Biology, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40
History, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40
Biology, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40
Biology, 24.06.2021 15:40
Physics, 24.06.2021 15:40
Mathematics, 24.06.2021 15:40