Here are the results of the 3 trials of dissolving equal masses of marble in hydrochloric acid listed from fastest to the slowest.
List concentration, surface area, and temperature in decreasing order of their important in increasing the rate of this reaction.
Trial 1 = Dilute = Marble is finely ground = 20 degrees C
Trial 2 = Dilute = Marble is Lump = 40 degrees C
Trial 3 = Concentrated = Marble is lump = 40 degrees C
I see the trials but no results. Look at your results and arrange them in the order requested. Or are you doing a dry lab of the experiment.
The results are there for each trial
Trial 1 = Hydrochloric Acid is dilute. Marble is finely ground and the temperature is 20 degrees Celsius
Trial 2 = Hydrochloric acid is dilute. Marble is lump and the temperature is 40 degrees Celsius.
Trial 3 = Hydrochloric acid is concentrated. Marble is lump and the temperature is 20 degrees Celsius
I disagree. The conditions are there. The results are (and I missed them) in the preamble saying they are listed from fastest to slowest. Therefore, the first one listed dissolved the quickest and the last one listed took the longest.
Go through this logically.
I would do this.
Trials 1&2. both dil acid. surface area higher in 1 than 2. T lower in 1 BUT #1 dissolves fastest. So surface area (finely ground) is most important
Trials 2 & 3. Surface area is not a factor since both are lumps. Acid is stronger in 3 and T is lower in 3 BUT 2 is faster than 3; therefore, temperature must be the second most important which leaves concn as the least important.
Do you agree?
Thanks so much I agree:)
To determine the order of importance for concentration, surface area, and temperature in increasing the rate of the reaction of dissolving marble in hydrochloric acid, we need to analyze the given information for each trial:
Trial 1:
- Concentration: Dilute
- Surface area: Marble is finely ground
- Temperature: 20 degrees C
Trial 2:
- Concentration: Dilute
- Surface area: Marble is a lump
- Temperature: 40 degrees C
Trial 3:
- Concentration: Concentrated
- Surface area: Marble is a lump
- Temperature: 40 degrees C
Now, let's consider the impact of each factor on the rate of reaction:
1. Concentration: The concentration of a reactant affects the reaction rate. Generally, an increase in concentration leads to an increase in the rate of the reaction. Trial 3 has a concentrated solution, which suggests that a higher concentration can increase the reaction rate compared to the dilute solutions in Trials 1 and 2.
2. Surface area: Surface area plays a crucial role in the rate of reactions because it determines the amount of reactant exposed to the other reactant(s). A larger surface area provides more contact points, leading to a faster reaction. In this case, Trial 1 has the marble finely ground, which increases the surface area compared to Trial 2, where the marble is in a lump form. Therefore, the finely ground marble in Trial 1 will likely result in a faster reaction compared to Trial 2's lump marble.
3. Temperature: Temperature has a significant impact on the rate of reactions. Higher temperatures generally cause reactant particles to move faster, increasing the chances of successful collisions, and leading to a faster reaction. Both Trial 2 and Trial 3 have the same temperature of 40 degrees C, which is higher than the 20 degrees C in Trial 1. As a result, Trials 2 and 3 will likely have faster reactions compared to Trial 1 due to the higher temperature.
Based on the analysis above, the decreasing order of importance for increasing the rate of this reaction would be:
1. Concentration (from highest to lowest: Trial 3, Trial 1, Trial 2)
2. Temperature (highest for Trials 2 and 3, lowest for Trial 1)
3. Surface area (highest for Trial 1, lowest for Trial 2)