Step one calculate the moles of each element
that is moles= % composition/molar mass
molar mass of Ca = 40g/mol, S= 32 g/mol , O= 16 g/mol
moles of Ca = 29.4 /40g/mol=0.735 moles, S= 23.5/32 =0.734 moles, O= 47.1/16= 2.94 moles
calculate the mole ratio by dividing each mole with smallest mole that is 0.734
Ca= 0.735/0.734= 1, S= 0.734/0.734 =1, O = 2.94/ 0.734= 4
therefore the emipical formula = CaSO4
Accelerating, because it’s going from standing still to running, so the speed increases
D as the two substances could have close boiling points, so if the temperature is not controlled well, both substances will evaporate.
2H2+O2→2H2O
We have to be aware that the number of atoms are the same on both reactant side and product side.
