1. Nitrogen monoxide is oxidized in air to give brown nitrogen dioxide. Starting with 2.2mol NO, how many moles and how many grams of 02 are required for complete reaction? What mass of NO2,in grams, is produced? Please show the solution step by step. thanks
_Step 1:_
Balance the equation:
_ NO + _ O2 = _ NO2
2.2mol NO requires ___mol O2
_Step 2:_
Use the molar mass of O2 to determine the mass of that amount.
Using:
Molar mass of O2 is 31.99886 ± 0.00002 g/mol
_Step 3:_
Repeat steps one and two to determine the amoung of NO2 produced and its mass.
Using:
Molar mass of NO2 is 46.00558 ± 0.00003 g/mol
To find out how many moles and grams of O2 are required for the complete oxidation of nitrogen monoxide (NO) to nitrogen dioxide (NO2), we need to balance the chemical equation and use stoichiometry.
The balanced equation for the reaction is:
2 NO + O2 -> 2 NO2
Based on the equation, we can see that 2 moles of NO react with 1 mole of O2 to produce 2 moles of NO2.
Step 1: Calculate the moles of O2 required
Since the ratio between the moles of NO and O2 is 2:1, we can use that ratio to find the moles of O2 required.
Given: Moles of NO = 2.2 mol
Ratio of NO to O2 = 2:1
Moles of O2 = (2.2 mol NO) * (1 mol O2 / 2 mol NO)
= 1.1 mol O2
Therefore, 1.1 moles of O2 are required.
Step 2: Calculate the grams of O2 required
To convert moles to grams, we need to use the molar mass of O2, which is approximately 32 grams/mol.
Given: Moles of O2 = 1.1 mol
Molar mass of O2 = 32 g/mol
Grams of O2 = (1.1 mol O2) * (32 g O2 / 1 mol O2)
= 35.2 g O2
Therefore, 35.2 grams of O2 are required.
Step 3: Calculate the mass of NO2 produced
To find the mass of NO2 produced, we use the stoichiometry of the balanced equation. Since the ratio between NO and NO2 is 1:1, the moles of NO2 produced will be the same as the moles of NO.
Given: Moles of NO = 2.2 mol
Molar mass of NO2 = 46 g/mol
Mass of NO2 = (2.2 mol NO2) * (46 g NO2 / 1 mol NO2)
= 101.2 g NO2
Therefore, 101.2 grams of NO2 are produced.
In summary:
- 1.1 moles of O2 and 35.2 grams of O2 are required for the complete reaction.
- 101.2 grams of NO2 are produced.