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How many decimal places are measured on a balance (mass)?
3 deci. places
How many decimal places are measured on a ruler (length)?
2 deci. places
How many decimals are measured on a 50 mL cylinder (volume)?
1 deci. places
How many decimals are measured on a 10 mL cylinder (volume)?
2 deci. places
Density =
Mass / Volume
Volume for cylinder =
pi x r² x h
Radius =
Diameter / 2
Volume for Cube =
s³
How to convert mass of item to # of item?
total of mass (g) / average mass (g/clip) = (____ clips)
# of molecules in compound =
g of molecule/ g/mol of molecule (molar mass) (average) = # of molecules
Volume for rectangle =
l x w x h