Answer:
The Yerkes-Dodson Law suggests that there is a relationship between performance and arousal. Increased arousal can help improve performance, but only up to a certain point.
Explanation:
Molar mass of FE2O3=2(55.85)+3(16)=159.7
2.56g*1mol/159.7*2mol/1mol*55.85g/1mol=1.79g
Answer:
Gallon (US) to Milliliter Conversion Table
Gallon (US) [gal (US)] Milliliter [mL]
1 gal (US) 3785.411784 mL
2 gal (US) 7570.823568 mL
3 gal (US) 11356.235352 mL
5 gal (US) 18927.05892 mL
Answer:
Hey buddy, here is your answer. Hope it helps you.
Explanation:
The force stopping the object's motion might be an obvious one - the ground! Friction is a force that slows or stops motion. Friction is the resistance to motion created by two objects rubbing against each other (the sled and the snow, for instance). Even air causes friction.
is most abundant and 6310 times more than HF.
<h3>What is a strong and weak acid?</h3>
When an acid is dissolved in water, all of its molecules disintegrate, making the acid powerful.
When an acid is dissolved in water, only a small number of its molecules disintegrate, making the acid weak. Strong acids have a lower pH than weak acids.
The powerful acids include perchloric acid, chloric acid, nitric acid, sulfuric acid, hydrobromic acid, and hydroiodic acid.
Given:
Pka=3..2
pH=7
Let the volume be 1 liter
[HF]=01 M
![pH=pka+log \frac{F^{-}}{HF} \\\\7=3.2+log\frac{F^{-}}{HF} \\3.8=log\frac{F^{-}}{HF}\\ \frac{F^{-}}{0.1}=10^{3.8} \\F^{-}=630.95 M](https://tex.z-dn.net/?f=pH%3Dpka%2Blog%20%5Cfrac%7BF%5E%7B-%7D%7D%7BHF%7D%20%5C%5C%5C%5C7%3D3.2%2Blog%5Cfrac%7BF%5E%7B-%7D%7D%7BHF%7D%20%5C%5C3.8%3Dlog%5Cfrac%7BF%5E%7B-%7D%7D%7BHF%7D%5C%5C%20%5Cfrac%7BF%5E%7B-%7D%7D%7B0.1%7D%3D10%5E%7B3.8%7D%20%5C%5CF%5E%7B-%7D%3D630.95%20M)
Now,
![\frac{F^{-}}{HF}=\frac{630.95}{0.1}\\ =6309.57](https://tex.z-dn.net/?f=%5Cfrac%7BF%5E%7B-%7D%7D%7BHF%7D%3D%5Cfrac%7B630.95%7D%7B0.1%7D%5C%5C%20%3D6309.57)
F-:HF= 6309.57:1
Therefore, the most abundant is
and has 6310 times more than HF is
.
To know more about strong and weak acids, visit: brainly.com/question/12811944
#SPJ4