How do u calculate the molar mass of a compound from its formula then use it to convert between moles and gram

To find the molar mass of a compound add up the atomic masses of the elements in their respective ratios. Consider NaOH (sodium hydroxide) Ar (atomic mass) of Na = 23g O = 16g H = 1g Now there is only one atom of each element so: (1 x 23) + (1 x 16) + (1 x 1) = 23 + 16 + 1 = 40g If you want to find the weight of 2 moles of NaOH use the formula: Given mass = molar mass x no. of moles = 40g x 2 = 80 g If you want to find the no of moles in 160 g of NaOH use the formula: No of moles = Given mass / molar mass = 160 g / 40g = 4 moles

I have no idea but by looking at your list of questions I know beyond a shadow of a doubt that you are smarter than me.

you add the total mass of each atom and the ratio you are looking for is: 1 mole: [total atomic weight/mass] grams. basically the same thing, unless you have like .5 moles of the comound in which case you would flip the ratio (divide them) and multiply by the .5 moles of the compound. I got over a hundred percent in stoichiometry, which is what you are doing.

to calculate the molar mass of a compound frist should sum the atomic mass of all atoms in compound for example: H2O 2*1+16=18 then if we have mass of a compound so whit division the mass to the molar mass can calculate the number of moles of that compound. if we have the number of moles so with multiplication of molar mass in number of moles we can get the mass.

its easy u need not worry ex of water its formulae isH2O atomic mass of H&O are 1 & 16 respectively therefore its molecular mass is 2*1 + 16 = 18 gm/mol we should add the atomic masses of individual element And multiply them by their superscript