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PLEASE HELP!!
in an experiment, sulfuric 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 visible was recorded. A partial record of the experiment is shown.

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 of time; Just describe the trend you would expect (increase or decrease) and why it occurs.

PLEASE HELP In An Experiment Sulfuric Acid Reacted With Different Volumes Of Sodium Thiosulfate In Water A Yellow Precipitate Was Formed During The Reaction A C class=

Sagot :

Oseni

The correct trend would be that the time will keep increasing with every decrease in the volume of sodium thiosulfate and corresponding increases in the volume of water.

Concentration of reactants and rate of reactions

The concentration of reactants is one of the factors that affect the rate of chemical reactions.

When the concentration of one or more of the reactants in a chemical reaction is increased, the rate of that reaction will increase accordingly. The reverse also happens if the concentration of reactants is decreased.

In the illustrated reaction, the higher the amount of water in the sodium thiosulfate, the lower the concentration of sodium thiosulfate in water. The lower the water content, the higher the concentration.

Thus, looking at the table downward, the concentration of sodium thiosulfate is decreasing. This means that the rate of reaction will decrease accordingly. In other words, the time will increase downward.

More on concentration and rate of reactants can be found here: https://brainly.com/question/15521317

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