Question

Help!!!

1. How many grams of Ag+ are present in 2.24 grams of silver
sulfite?
grams Agt.
2. How many grams of silver sulfite contain 1.75 grams of Agt?
grams silver sulfite.

Answer 1

1. 0.82 gram of Ag+

2. 4.79 g of Ag₂O₃S

Step-by-step explanation:

From the given information:

Total amount of Ag₂O₃S = 2.24 grams

Atomic mass of Ag+ =107.86 g/mole

molar mass of Ag₂O₃S = 295.8 g/mole

∴

The mass of the Silver (Ag) in grams is:

`= Total\ amount \ of \ Ag^+ * (107.86 \ g/mol)/(295.8 \ g/mol)`

`=2.24 * (107.86 \ g/mol)/(295.8 \ g/mol)`

= 0.82 gram of Ag+

2.

Here, the total amount of Ag₂O₃S = unknown

Atomic mass of Ag+ = 107.86 g/mole

molar mass of Ag₂O₃S = 295.8 g/mole

amount of Ag+ = 1.75 g

∴

The mass of Ag₂O₃S =
`Total \ amount \ of \ Ag^+ * (295.8 \ g/mol)/(107.86\ g/mol)`

`=1.75 * (295.8 \ g/mol)/(107.86\ g/mol)`

= 4.79 g of Ag₂O₃S