Answer:
22.5L
Explanation:
Given parameters:
Volume of N₂O₃ = 15liters
Unknown:
volume of oxygen gas = ?
Solution:
To solve this problem, we need to work from the known to unknown. The known is N₂O₃. We can find the number of moles from here.
Note: The condition is Standard temperature and pressure
Number of moles =
Number of moles of N₂O₃ = = 0.67moles
The equation of the reaction;
2N₂ + 3O₂ → 2N₂O₃
Since the equation is balanced;
2 moles of N₂O₃ is produced from 3 moles of O₂
0.67moles of N₂O₃ is produced from = 1.01 moles of O₂
Therefore;
Volume of O₂ = 1.01 x 22.4 = 22.5L
Answer:
B
Explanation:
best way to put off the fire
The best explanation would be that acid rain has dissolved the older statues over time.
33 - 15 = 18
This element is P-33
Answer:-
0.229 L
Explanation:-
Molar mass of AgBr = 107.87 x 1 + 79.9 x 1
=187.77 grams mol-1
Mass of AgBr = 150 grams
Number of moles of AgBr = 150 grams / 187.77 gram mol-1
= 0.8 mol
The balanced chemical equation is
NaBr (aq) + AgNO3 (aq)--> AgBr(s) + NaNO3(aq)
From the equation we can see that
1 mol of AgBr is produced from 1 mol of AgNO3.
∴ 0.8 mol of AgBr is produced from 1 x 0.8 / 1 = 0.8 mol of AgNO3.
Strength of AgNO3 = 3.5 M
Volume of AgNO3 required = Number of moles / strength
= 0.8 moles / 3.5
=0.229 L