Looks like no one added any tags here yet for you.
To calculate slope in excel:
= slope(y values, x values)
To calculate y intercept in excel
= intercept(y values, x values)
To calculate average in excel
= average(values)
Standard Deviation=
sqrt (value-average)²+ …/total number-1
Standard deviation function
STDEV.S
slope intercept equation
y=mx+b
Percent Error
(measured value- true value)/true value) *100
Absolute Value
actual value-measured value
100 ml beaker
50 ml graduated cylinder
10 ml volumetric flask
50 ml buret
transfer pipet
10 ml volumetric pipet
analytical balance
Pan balance
50 ml Erlenmeyer Flask
Test tube
How to measure with volumetric pipet
Attach bulb to the top
Extract liquid to meniscus
Transfer liquid
Accuracy
How close measured value is to the true or accepted value
Precision
How consistent the data is within each other
How to calculate accuracy
Absolute Error
How to calculate precision
use standard deviation, smaller value = more precise
Percent Composition in unknown mixtures
mass of component/ total mass of mixture *100
difference between gravitational filter and vacuum filter
Gravity filter uses gravity to move liquid through the filter
Vacuum filter uses vacuum to create pressure to draw the liquid through the filter
Theoretical Yield
Determine the moles of element—use molar ratio as converstion factor— Convert mols to grams
Yield Percent
Actual yield/theoretical yield *100
gravity filter
vacuum filter
crucible
bunsen burner
watch glass