Answer:
Oh so so sorry about that. and thanks for caring for us. anyway we are good wbu
Answer:
368.92g
Explanation:
Firstly, let's balance the equation which is
2NO + O₂ ---> 2NO₂
Starting with 8.02 mol of NO let's calculate the moles of oxygen which is in a 2 : 1 molar ratio
2NO + O₂
2 : 1
8.02 mol : x mol
Moles of O₂ = 8.02 ÷ 2 = 4.01 mol
Doing the same thing for 18.75 mol of O₂ to calculate the number of moles of NO
2NO + O₂
2 : 1
x mol : 18.75 mol
Moles of NO = 18.75 × 2 = 37.5 however we are told we have 8.02 moles of NO, so we are unable to use 18.75 mol of O₂
Using 8.02 mol of NO to figure out the number of moles of NO₂ :
2NO : 2NO₂
They have the same molar ratio of 2 : 2, so the number of moles is 8.02
Using formula moles = mass / Molar mass
Rearranging to find mass = moles × molar mass
Molar mass of NO₂ = 14 + 16 + 16 = 46
Mass = 46 × 8.02 = 368.92g
Answer:
100 mL Graduated cylinder.
Explanation:
The instrument would give the greatest precision is 100 mL Graduated cylinder.
Because it has the smallest diameter and it is graduated every 1.0 mL. so, its error percent is the lowest.
Beaker and Erlenmeyer flask have a greater diameter and their grauation is every 10.0 mL. So, their error % is larger.
Answer:
Chlorine (Cl) is most reactive out the the listed elements.
