Na = 23
S= 32
O= 16
Therefore : Na2SO4 = (23×2) +32+(16×4) =
46+32+64=142g/mol
Na = 23
S= 32
O= 16
Therefore : Na2SO4 = (23×2) +32+(16×4) =
46+32+64=142g/mol
Sodium: Na=23. Na2= 23 multiplied by 2=46. Sulphur: S=32 and since it has no subscript(a number that would come after it) you times it by nothing. Oxygen: O=16. O4= 16 multiplied by 4= 64. then you add all these answers the 46+ 32+64= 142.
The mass of one mole of sodium sulfate decahydrate is about 322.1952 grams.
Approximately 142 grams pr. mole.
sodium sulfide oxide
142.05
No, that's not true. Look at the formula for kinetic energy. You need mass and speed.
When you find the relative density of butter, use the formula for density = mass/volume. First find the mass, or weight of the butter, and then divide the butter by its volume.
mass = Force ___________ This formula is from Newtons second law. acceleration
Density equals mass divided by volume. So you use mass and volume to determine density.
Mass = density x volume
The formula is Na2SO3 , because Na have 1 valence electrone and SO3 is a polyatomic with 2 valence electrons so u cross multiply Na1 * SO3(2) =Na2SO3
Na2SO3.
Na2SO3
the empirical formula and the molar mass
The actual mass must be divided by the empirical mass. This was derived from the following equation: (subscript)(empirical formula) = (molecular formula) subscript = (molecular formula)/(empirical formula)
The density or some other information must be given that allow you to find the molar mass. Calculate the empirical formula mass. Divide molar mass by empirical formula mass. This answer is multiplied by all subscripts of the empirical formula to get the molecular formula.
Na4C...the 4 represents Sodium's subscript, which is 4.
Formula mass HNO3 : 63.012 g/mol
H2SO3 + 2NaOH---------Na2SO3 + 2H2O
molar mass of unknown/molar mass of empirial = # of empirical units in the molecular formula. Example: empirical formula is CH2O with a molar mass of 30. If the molar mass of the unknown is 180, then 180/30 = 6 and molecular formula will be C6H12O6
Use the formula density = mass divided by volume.
Na2SO3 + 2HCl -> 2NaCl + H2SO3