how do i convert 0.00183338433 g/mL to mM? and putting it in 4 significant numbers. thank u
2 answers
sorry i forgot to put that the chemical formula is C8H14N2O3S
to convert grams to mols you need to know molecular weight from periodic table of each of the elements in the compound.
C = 12.011 g/mol
H = 1.008 g/mol
N = 14.007 g/mol
0 = 15.999 g/mol
S = 32.06 g/mol
each of these numbers indicates how much 1 mol weighs in grams
now in your compound there are 8 Cs, 14 Hs, 2 Ns, 3 Os and 1 S
so 1 mol of your compound weighs
8*12.011 g/mol+
14*1.008 g/mol+
2*14.007 g/mol+
3*15.999 g/mol+
1*32.06 g/mol=
218.271g/mol
0.00183338433 g/mL * (1mol/218.271g) (set it up so the grams cancels and the mols are left)
so 0.00183338433/218.271=8.39958*10^-6mol/mL
now convert to desire units:
8.39958*10^-6mol/mL*(1000mmol/1mol)*(1000mL/1L)
(again set it up so units cancel properly)
1000*1000 = 10^6 which cancels the 10^-6
thus 8.39958mmol/L or in other words 8.39958mM
and finally to four scientific figures
8.400mM
C = 12.011 g/mol
H = 1.008 g/mol
N = 14.007 g/mol
0 = 15.999 g/mol
S = 32.06 g/mol
each of these numbers indicates how much 1 mol weighs in grams
now in your compound there are 8 Cs, 14 Hs, 2 Ns, 3 Os and 1 S
so 1 mol of your compound weighs
8*12.011 g/mol+
14*1.008 g/mol+
2*14.007 g/mol+
3*15.999 g/mol+
1*32.06 g/mol=
218.271g/mol
0.00183338433 g/mL * (1mol/218.271g) (set it up so the grams cancels and the mols are left)
so 0.00183338433/218.271=8.39958*10^-6mol/mL
now convert to desire units:
8.39958*10^-6mol/mL*(1000mmol/1mol)*(1000mL/1L)
(again set it up so units cancel properly)
1000*1000 = 10^6 which cancels the 10^-6
thus 8.39958mmol/L or in other words 8.39958mM
and finally to four scientific figures
8.400mM