1/16 left would imply 4 half lives have passed (1/2 left = 1, 1/4 left = 2, 1/8 left = 3, 1/16 left = 4). So 4 half lives passed in 48 hours, meaning dividing 48 by 4 will give you the length of 1 half life. Which in this case is 12 hours.
Hey there !:
HF s molecule with the strongest intermolecular force
<span>HF > HI > HBr > HCl</span><span>
</span>The main factor of influence at the boiling point is the question of intermolecular forces, but not only that, the molar mass also has influence (the greater the molar mass, the greater the boiling point). Note that the only one forming hydrogen bridges is the HF, therefore the largest boiling point, iodine, bromine and chlorine have the same type of intermolecular (permanent dipole) connections as they are polar, and what will differentiate the boiling point of each one is the molar mass.
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Answer:
0.088 M.
Explanation:
Assuming that the temperature is 429 K, we can calculate the concentration of NO₂. Kc(429K) = 0.490.
The reaction is:
N₂O₄(g) ⇄ 2NO₂(g)
0.04 0.04
0.04 - x 0.04 + 2x
The constant of the reaction is:
![Kc = \frac{[NO_{2}]^{2}}{[N_{2}O_{4}]]}](https://tex.z-dn.net/?f=%20Kc%20%3D%20%5Cfrac%7B%5BNO_%7B2%7D%5D%5E%7B2%7D%7D%7B%5BN_%7B2%7DO_%7B4%7D%5D%5D%7D%20)
By solving the above equation for x we have:
x = 0.024 = [NO₂]
Hence the concentration of NO₂ is:
![[NO_{2}] = 0.04 + 2*0.024 = 0.088 M](https://tex.z-dn.net/?f=%20%5BNO_%7B2%7D%5D%20%3D%200.04%20%2B%202%2A0.024%20%3D%200.088%20M%20)
I hope it helps you!
Okay so i think the answer to this is.
weight=mg
m=0.000100 g=9.80
so weight= 0.00980 kgm/s2
Hopefully thats correct (i am horrible at math)
