Answer:
Q1/0.83L
Q2/ 6.606L
Q3/ 3.27L
Explanation:
All the question Charles law for ideal gases
And his law up right there ☝️
Answer:
The answer is 7 (seven)
Explanation:
Fluorine has seven of eight possible electrons in its outermost energy level, which is energy level II.
Camouflage, mimicry, and animals' body parts and coverings are physical adaptations. The way in which an animal behaves is an adaptation, too—a behavioral adaptation . Behaviors that animals are born knowing how to do are instincts . A lion preying upon a zebra and a bird building a nest are examples of instincts.
Answer:
a because the others whould cause earthquakes
Explanation:
Answer:
92.46 g
Explanation:
The reaction is
![Cu^{2+}+2e^-\rightarrow Cu](https://tex.z-dn.net/?f=Cu%5E%7B2%2B%7D%2B2e%5E-%5Crightarrow%20Cu)
I = Current = 19.5 A
t = 4 hours = ![4\times 60\times 60=14400\ \text{s}](https://tex.z-dn.net/?f=4%5Ctimes%2060%5Ctimes%2060%3D14400%5C%20%5Ctext%7Bs%7D)
F = Faraday constant = 96485.33 C/mol
Molar mass of copper = 63.546 g/mol
Charge is given by
![Q=It\\\Rightarrow Q=19.5\times 14400\\\Rightarrow Q=280800\ \text{C}](https://tex.z-dn.net/?f=Q%3DIt%5C%5C%5CRightarrow%20Q%3D19.5%5Ctimes%2014400%5C%5C%5CRightarrow%20Q%3D280800%5C%20%5Ctext%7BC%7D)
Moles of electrons is given by
![\dfrac{Q}{F}=\dfrac{280800}{96485.33}\\ =2.91\ \text{mol}](https://tex.z-dn.net/?f=%5Cdfrac%7BQ%7D%7BF%7D%3D%5Cdfrac%7B280800%7D%7B96485.33%7D%5C%5C%20%3D2.91%5C%20%5Ctext%7Bmol%7D)
Moles of copper is
![\dfrac{1}{2}\times \dfrac{Q}{F}=\dfrac{1}{2}\times 2.91\\ =1.455\ \text{mol}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%20%5Cdfrac%7BQ%7D%7BF%7D%3D%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%202.91%5C%5C%20%3D1.455%5C%20%5Ctext%7Bmol%7D)
Mass of copper would be
![\text{Moles}\times \text{Molar mass of copper}=1.455\times 63.546\\ =92.46\ \text{g}](https://tex.z-dn.net/?f=%5Ctext%7BMoles%7D%5Ctimes%20%5Ctext%7BMolar%20mass%20of%20copper%7D%3D1.455%5Ctimes%2063.546%5C%5C%20%3D92.46%5C%20%5Ctext%7Bg%7D)
The mass of copper electroplated is 92.46 g.