How do I calculate the relative formula mass of FeSO4 and the number of moles, when the formula mass of O=16, S=32, Fe=56 and the mass of FeSO4= 380g
The formula mass (Mr) of FeSO4 is the total mass of all the individual elemenets added together. So the Mr of FeSO4 = (1 x Fe) + (1 x S) + (4 x O) = 56 + 32 + 4x16 = 152 To calculate moles, the equation for moles is Mass divided by Mr (mass/Mr). Moles of FeSO4 = Mass/Mr = 380 / 152 = 2.5 moles
HM
Related Chemistry GCSE answers
All answers ▸What is the general rule for the molecular formula for alkanes? Therefore what is the formula for an alkane with 7 carbons, and what is it called?
25 cm^3 of a solution of known 0.2M HCl is neutralised by titration by 21.5cm^3 of NaOH solution. Calculate then concentration of the NaOH solution to 3dp.
Describe how ionic and covalent bonding forms compounds (6). You may use diagrams to help.
What is the electronic configuration of a Calcium ion?