Experiment 1: MEASUREMENTert fridayBue/Pre-Lab Exercises1. What is the length of the rod shown below?O12361059782. If Student A measures the volume of a liquid and reports its volume as 23.50 mLand Student B measures a different amount of the same liquid and reportS tsvolume as 15.0 mL, is it likely that the students used the same measuring device?Yes or no? Explain your answer.2323-5O X ISO72.0ML3. If you were asked to measure 25.0 mL of a liquid and to transfer it to anothercontainer, which of the following glassware could you use? Choose all that apply.Give reason(s).D.mL will Leads tos approximetlyVa) A 50-mL buret with smallest divisions of 0.1 mL-13Cu2b) A 50 mL beaker with smallest divisions of 10 mLc)d)A 50-mL volumetric flaskA 50-mL graduated cylinder with smallest divisions of 1 mLe) A 25-mL pipet4. A group of five students attempted to estimate 100 g of a substance by balancingthe amount of the substance with a 100-g standard mass and obtained the followingmasses after each estimated amount was weighed: 95.8634 g, 80.8125 g, 106.5078g, 98.2865 g, and 86.4453 g. Create a data table as shown below and use the datato determine the answers to the following questions:Mass (g)% DeviationDeviation (g)Error (g)% Errora) What is the mean? And what is the true value?b) What are the deviation and % deviation from the mean for each value?c) What are the error and % error for each value?Post-Lab Questions1. How many significant figures are in the cm measurement of Rod A? How did youfigure out how many decimal places to use in your answer?2. Why do you think that the beaker is3. Could you use a 100-mL volumetric flask to deliver 50.0 mL of a liquid? Explain.Which measuring devices could you use to trans fer 50.0 mL of a liquid? Explain.5. Chefs often estimate the amount of ingredients needed for a dish. Do you think itwould be a good idea to estimate rather than weigh the amount of chemicals neededfor an experiment? Explain.not stamped with either TD or TC?4.What does the percent error in your masses tell you about the accuracy ofestimating?6.TC30Pre-Lab 2TD

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Asked Sep 8, 2019
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All the pre lab and post lab question must be answered please. So I mean all the questions not just one question but all. Thanks

Experiment 1: MEASUREMENT
ert friday
Bue
/Pre-Lab Exercises
1. What is the length of the rod shown below?
O
1
2
3
6
10
5
9
7
8
2. If Student A measures the volume of a liquid and reports its volume as 23.50 mL
and Student B measures a different amount of the same liquid and reportS ts
volume as 15.0 mL, is it likely that the students used the same measuring device?
Yes or no? Explain your answer.
23
23-5O X ISO
72.0ML
3. If you were asked to measure 25.0 mL of a liquid and to transfer it to another
container, which of the following glassware could you use? Choose all that apply.
Give reason(s).
D.mL will Leads to
s approximetly
Va) A 50-mL buret with smallest divisions of 0.1 mL-13Cu2
b) A 50 mL beaker with smallest divisions of 10 mL
c)
d)
A 50-mL volumetric flask
A 50-mL graduated cylinder with smallest divisions of 1 mL
e) A 25-mL pipet
4. A group of five students attempted to estimate 100 g of a substance by balancing
the amount of the substance with a 100-g standard mass and obtained the following
masses after each estimated amount was weighed: 95.8634 g, 80.8125 g, 106.5078
g, 98.2865 g, and 86.4453 g. Create a data table as shown below and use the data
to determine the answers to the following questions:
Mass (g)
% Deviation
Deviation (g)
Error (g)
% Error
a) What is the mean? And what is the true value?
b) What are the deviation and % deviation from the mean for each value?
c) What are the error and % error for each value?
Post-Lab Questions
1. How many significant figures are in the cm measurement of Rod A? How did you
figure out how many decimal places to use in your answer?
2. Why do you think that the beaker is
3. Could you use a 100-mL volumetric flask to deliver 50.0 mL of a liquid? Explain.
Which measuring devices could you use to trans fer 50.0 mL of a liquid? Explain.
5. Chefs often estimate the amount of ingredients needed for a dish. Do you think it
would be a good idea to estimate rather than weigh the amount of chemicals needed
for an experiment? Explain.
not stamped with either TD or TC?
4.
What does the percent error in your masses tell you about the accuracy of
estimating?
6.
TC
30
Pre-Lab 2
TD
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Experiment 1: MEASUREMENT ert friday Bue /Pre-Lab Exercises 1. What is the length of the rod shown below? O 1 2 3 6 10 5 9 7 8 2. If Student A measures the volume of a liquid and reports its volume as 23.50 mL and Student B measures a different amount of the same liquid and reportS ts volume as 15.0 mL, is it likely that the students used the same measuring device? Yes or no? Explain your answer. 23 23-5O X ISO 72.0ML 3. If you were asked to measure 25.0 mL of a liquid and to transfer it to another container, which of the following glassware could you use? Choose all that apply. Give reason(s). D.mL will Leads to s approximetly Va) A 50-mL buret with smallest divisions of 0.1 mL-13Cu2 b) A 50 mL beaker with smallest divisions of 10 mL c) d) A 50-mL volumetric flask A 50-mL graduated cylinder with smallest divisions of 1 mL e) A 25-mL pipet 4. A group of five students attempted to estimate 100 g of a substance by balancing the amount of the substance with a 100-g standard mass and obtained the following masses after each estimated amount was weighed: 95.8634 g, 80.8125 g, 106.5078 g, 98.2865 g, and 86.4453 g. Create a data table as shown below and use the data to determine the answers to the following questions: Mass (g) % Deviation Deviation (g) Error (g) % Error a) What is the mean? And what is the true value? b) What are the deviation and % deviation from the mean for each value? c) What are the error and % error for each value? Post-Lab Questions 1. How many significant figures are in the cm measurement of Rod A? How did you figure out how many decimal places to use in your answer? 2. Why do you think that the beaker is 3. Could you use a 100-mL volumetric flask to deliver 50.0 mL of a liquid? Explain. Which measuring devices could you use to trans fer 50.0 mL of a liquid? Explain. 5. Chefs often estimate the amount of ingredients needed for a dish. Do you think it would be a good idea to estimate rather than weigh the amount of chemicals needed for an experiment? Explain. not stamped with either TD or TC? 4. What does the percent error in your masses tell you about the accuracy of estimating? 6. TC 30 Pre-Lab 2 TD

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system that involves and Volume Metic Of measurment is the Ihe mea sure went OF can be epreseui eng h, kilome ter, mdiers intenms nd centimeters: Uleig ht can be measured in tenms gramsrams an kilograms: Volume cau be measured terms of ni lli ters and iters

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The iren scale is shonn belour:

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