Page 242 - Chemistry eBook
P. 242
Density
Mole C
Percent Percent
Concen
Mole Calculation Problem
Table T
Important Formulas and Equations
What is the mass of 4 moleds=ofdHenOs?ity m2
d = m = mass
Check V Reffy, Table T (p. 12). Plug the values
number of moles =
given mass
gram-formula mass
lculations
Error Composition
tration
into the equation:
% error = measured value – accepted value × 100 accepted value
% composition by mass = mass of part × 100 mass of whole
parts per million = mass of solute × 1 000 000 mass of solution
molarity = moles of solute liter of solution
V = volume
a
241 © UNIT 6: MATH IN CHEMISTRY
