In which case would recalibrating a thermometer be an important next step in an experiment dealing with boiling points?(1 point)
The results of several trials vary by a large amount, but the average is close to the accepted value for the boiling point.
The results of several trials are all very close to each other, but they are noticeably different from the accepted value for the boiling point.
A small number of trials are conducted, with results quite different from each other, and with an average that is noticeably different from the accepted value.
A single trial is conducted, and the result is very close to the accepted value of the boiling point.
it’s B : the results of several trials are all very close to each other, but they are noticeably different from the accepted value for the boiling point. i just took the test
Just took the exam, here are the answers, since Quizlet won't show you all the answers right away. I'll also post the ones for the math exam after I take it!
1: Yes, it is possible because they have similar intensive properties
2: Homogeneous mixture
3: Due to repulsion between electrons, valence electrons will be arranged as FAR APART from each other as possible
4: Neutral atoms of lead must have 82 protons. Ions must have 82 PROTONS as well
5: Experiments that identified characteristics of atoms provided scientists with atomic weights and atomic numbers, which were used to organize the periodic table.
6: A covalent bond would form because the electron would be shared so both hydrogens have a full, stable shell.
7: K and CI
8: Polar sugar molecules dissolve in WATER, which is polar.
9: High temperatures mean more kinetic energy, which keeps sodium and chlorine ions from combining, which increases solubility.
10: It accepts protons and only PARTIALLY dissociates in water.
11: PH3 is a stronger acid than NH3.
12: The scientist is investigating Charles’s law, which shows that TEMPERATURE and VOLUME are DIRECTLY proportional.
13: It will likely be unreactive.
14: Student B, because of the law of conservation of matter
15: The atoms have the same electronegativity.
16: Bromine
17: No, it will not because iodine is less reactive than chlorine.
18: 6H2O + 6CO2 → C6H12O6 + 6O2
19: +2
20: 0.24 M
21: Tungsten (W) changes oxidation numbers from +6 to zero, so it undergoes REDUCTION.
22: It has a HIGHER boiling point than water, and it likely has STRONGER electrostatic forces between its molecules than water.
23: Castor oil
24: Substance B has stronger bonds, and it takes MORE energy to undergo a phase change.
25: The student should perform multiple trials of the same experiment, then take the AVERAGE of all of the results.
26: The results of several trials are all VERY CLOSE to each other, but they are noticeably different from the accepted value for the boiling point.
See ya on the Algebra portion, amigos!
Thank you for sharing the correct answers! It will be helpful for future students taking the same exam.
When the thermometer says it's boiling, but you're still waiting for your pasta to cook, it's probably a good time to recalibrate that thermometer! In this case, if the results of several trials vary by a large amount, but the average is close to the accepted value for the boiling point, it would be important to recalibrate the thermometer. Maybe it's just having a little too much fun playing with your emotions and needs to get its act together! It's like when a clown gets a little too chaotic at a birthday party and needs a time-out to reevaluate its life choices. So, go ahead and give that thermometer a recalibration to make sure it's not just clowning around with your experiment!
The case in which recalibrating a thermometer would be an important next step in an experiment dealing with boiling points is when the results of several trials vary by a large amount, but the average is close to the accepted value for the boiling point.
Explanation:
In an experiment dealing with boiling points, it is important to have accurate measurements of temperature using a thermometer. If the results of several trials vary by a large amount but the average is still close to the accepted value, it suggests that there may be inconsistent readings from the thermometer. This inconsistency could be due to the thermometer not being properly calibrated.
To recalibrate a thermometer, you would need to follow these steps:
1. Prepare a known reference point: You will need a substance with a known boiling point, such as distilled water, which boils at 100 degrees Celsius at sea level.
2. Check the thermometer: Before recalibrating, make sure the thermometer is clean and free from any debris that could affect its accuracy.
3. Perform the calibration: Immerse the thermometer in the boiling water and observe the temperature reading. It should read very close to the known boiling point, 100 degrees Celsius in this case. If it does not, then recalibration is required.
4. Adjust the thermometer: If the reading is not accurate, you may need to adjust the thermometer. Some thermometers have a screw or nut that can be turned to change the calibration. Follow the manufacturer's instructions to make the necessary adjustments to bring the thermometer in line with the known boiling point.
5. Repeat the calibration: After adjusting the thermometer, repeat the calibration process to ensure the accuracy of the readings.
By recalibrating the thermometer in the case where the results of several trials vary but the average is close to the accepted value, you can ensure that the measurements are accurate and reliable for the remainder of the experiment.