The coefficient for carbon dioxide (CO2) is 1 (option A) is correct.
Explanation:
Step 1: The unbalanced equation
(NH4)2CO3 ⇒ NH3 + CO2 + H2O
Step 2: Balancing the equation
(NH4)2CO3 ⇒ NH3 + CO2 + H2O
On the left side, we have 2x N (in (NH4)2CO3), on the right side we have 1x N (in NH3). To balance the amount of N on both sides we have to multiply NH3 on the right side by 2. Now the equation is balanced.
(NH4)2CO3 ⇒ 2NH3 + CO2 + H2O
The coefficient for carbon dioxide (CO2) is 1 (option A) is correct.
converts to in the first reaction. The coefficient in front of is three times the coefficient in front of . In other words, each mole of will produce three moles of . 0.0020 moles of will convert to 0.0060 moles of .
How many moles of thiosulfate ions are required?
reacts with in the second reaction. The coefficient in front of is twice the coefficient in front of . How many moles of does each mole of consume? Two. 0.0060 moles of will be produced. As a result, moles of will be needed.