12.3g of iron(ii)tetraoxosulphate(vi)crystals when heated gave 6g of the anhydrous salts.if only its water of crystalisation is lost as a result of the heating,calculate the % by mass of the water of crystalization.
Note: The weird name you have used for FeSO4 is not an IUPAC approved name.
12.3 g = mass FeSO4 + H2O
-06.0 g = mass FeSO4
--------------------
6.3 g = mass water of crystallization.
%H2O = (mass H2O/mass sample)*100 = ?
To calculate the percentage by mass of the water of crystallization, we need to determine the mass of the water lost when 12.3g of iron(II) tetraoxosulfate(VI) crystals are heated to give 6g of anhydrous salt.
1. Determine the mass of the water lost:
Mass of hydrated salt (before heating) = 12.3g
Mass of anhydrous salt (after heating) = 6g
Mass of water lost = Mass of hydrated salt - Mass of anhydrous salt
= 12.3g - 6g
= 6.3g
2. Calculate the percentage by mass of water:
% mass of water lost = (Mass of water lost / Mass of hydrated salt) x 100
= (6.3g / 12.3g) x 100
≈ 51.22%
Therefore, the % by mass of water of crystallization lost during heating is approximately 51.22%.
To calculate the percentage by mass of water of crystallization, we need to determine the mass of water lost during heating relative to the initial mass of the compound.
1. Start by calculating the initial mass of the compound (iron(II) tetraoxosulphate(VI)):
Initial mass = mass of anhydrous salt + mass of water of crystallization
= 6g (given) + mass of water of crystallization
2. Next, subtract the mass of the anhydrous salt from the initial mass to obtain the mass of water lost during heating:
Mass of water lost = Initial mass - mass of anhydrous salt
= Initial mass - 6g
3. Now, we need to calculate the percentage by mass of water of crystallization. This can be done using the following formula:
% by mass = (Mass of water lost / Initial mass) x 100
Let's substitute the values into the formula:
% by mass = (Mass of water lost / Initial mass) x 100
= [(Initial mass - 6g) / Initial mass] x 100
However, we do not have the value for the initial mass. To find this, we need additional information. Please provide the mass of the iron(II) tetraoxosulphate(VI) crystals mentioned in the question.