mole% and wt % difference

paramahamsa

hello forum
I am working on NKBT Perovskite material.My formula is (Na0.5 K0.5)0.5 (Bi)0.5 TiO3
I am using NaNo3,KNO3,Bi(NO3)3.5H2O,TiO2 powders
my question is how much powder in grams I have to take according to stichometry.
Do I have to work in wt% or in Mole %.
is there any difference?
I am using this method
NaNO3 in Grms = molecular wt of NaNO3*no.of moles of NaNO3*5(i want to make 5 grms of total sample)/total molecular weight of compound.
Is this correct?
plz reply.
actuall I am a physics major.

Borek

To prepare the mix you have to convert everything to grams, there is no other reasonable way to measure amount of the solid than to weight it.

Calculate molar ratio first, then convert it to weight ratio using molar masses of the compounds used.

paramahamsa

thank you for reply
so is my method is correct? or wrong?
can I proceed in the same way?

Borek

Quote by paramahamsa

NaNO3 in Grms = molecular wt of NaNO3*no.of moles of NaNO3*5(i want to make 5 grms of total sample)/total molecular weight of compound.

Looks OK to me.

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Borek Admin	To prepare the mix you have to convert everything to grams, there is no other reasonable way to measure amount of the solid than to weight it. Calculate molar ratio first, then convert it to weight ratio using molar masses of the compounds used.

paramahamsa	thank you for reply so is my method is correct? or wrong? can I proceed in the same way?