Answer:
Explanation:
Let us consider the reaction:
2 NO₂ + 1/2 O₂ ⇄ N₂O₅
The rate of formation of a substance is equal to the change in concentration of the product divided the change in time:
![r(N_{2}O_{5})=\frac{\Delta [N_{2}O_{5}] }{\Delta t}](https://tex.z-dn.net/?f=r%28N_%7B2%7DO_%7B5%7D%29%3D%5Cfrac%7B%5CDelta%20%5BN_%7B2%7DO_%7B5%7D%5D%20%7D%7B%5CDelta%20t%7D)
The rate of disappearance of a reactant is equal to to the change in concentration of the reactant divided the change in time, with a negative sign so that the rate is always a positive variable.
![r(NO_{2})=-\frac{\Delta[NO_{2}] }{\Delta t}](https://tex.z-dn.net/?f=r%28NO_%7B2%7D%29%3D-%5Cfrac%7B%5CDelta%5BNO_%7B2%7D%5D%20%7D%7B%5CDelta%20t%7D)
![r(O_{2})=-\frac{\Delta[O_{2}] }{\Delta t}](https://tex.z-dn.net/?f=r%28O_%7B2%7D%29%3D-%5Cfrac%7B%5CDelta%5BO_%7B2%7D%5D%20%7D%7B%5CDelta%20t%7D)
The rate of the reaction is equal to the rate of any substance divided its stoichiometric coefficient. In this way, we can relate these expressions:
Answer:
3.53 g
Explanation:
To convert from atoms to moles, you need to know Avogadro's number. Avogadro's number (6.022 × 10²³) is how many atoms there are in one mole of a substance. Use this to convert.
(1.97 × 10²² atoms) ÷ (6.022 × 10²³ atoms/mol) = 0.0327 mol
Now that you have moles, use the molar mass to convert to grams.
(0.0327 mol) × (107.87 g/mol) = 3.53 g
B north to south. Hope this helps
To be able to obtain the mass of the given volume of a substance, we need data on its density since it is the mass per volume of a substance. We multiply this value to the given volume. For water, it is approximately <span>10.02 lb/gal.
Mass of water = 200 gal ( 10.02 lb/gal ) = 200.4 lb
Hope this helped.</span>
