Α.fℓσυя αи∂ ѕυgαя αяє ѕιfтє∂ тσgєтнєя ιитσ α мєαѕυяιиg ¢υρ
Answer:
146.6 g
Explanation:
First we<u> calculate how many KNO₃ moles are there in 7.25 L of a 0.200 M solution</u>, using the <em>definition of molarity</em>:
- Molarity = moles / liters
- Molarity * liters = moles
- 0.200 M * 7.25 L = 1.45 moles
Then we<u> convert 1.45 moles of KNO₃ into grams</u>, using its <em>molar mass</em>:
- 1.45 mol * 101.103 g/mol = 146.6 g
calculate the molar mass of Fe + 3(Cl)
that is your total mass
percent composition of FeCl3
mass % Fe = molar mass FE / total mass X 100 = %
mass % 3Cl = molar mass 3Cl / total mass X 100 = %
that is percent composition
Hope it’s help !!!!
Abhishek Singh present invention to provide