Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789

DATA EXERCISE ON PLOTTING OF GRAPHS AND THE DETERMINATION OF STANDARDS (see the Appendix on...

DATA EXERCISE ON PLOTTING OF GRAPHS AND THE DETERMINATION OF STANDARDS
(see the Appendix on Errors and the Treatment of Data)
ERRORS AND THE TREATMENT OF DATA (APPENDIX)
The physical chemistry experiments in the following periods involve plotting data on graphs and the calculation of expressions including the slope and intercept of straight lines together with the corresponding errors. This data exercise is designed to provide experience in this type of calculation.
The following table gives values of y for various values of a variable x.
(1)
Plot a graph of y against x
(2)
Calculate the best slope m
(Use the centroid method) and the intercept c and draw the line corresponding to these
A calculated point xy can be used as the second (see page 7-8 of the Appendix)
(3)
Calculate the standard errors of the slope and intercept (see the
(4)
Appendix)
Calculate the quantity -m/c and using the rules of he combination of errors, calculate the standard error in this quantity. (see the appendix)
X
10.03
10.12
10.20
10.27
10.35
10.46
10.55
10.68
Y
1.105
1.130
1.205
1.225
1.300
1.380
1.455
1.560?

NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
To get notifications when anyone posts a new answer to this question,
Follow New Answers

Post an Answer

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

{{ quote.posted_by.display_name }}
{{ settings.form_textarea_description }}
Join your school's WhatsApp group
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789

Answers ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}
Ask Your Own Question

Quick Questions

See More Chemistry Questions
 
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Join your school's WhatsApp group
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts