<u>Answer:</u> The volume of concentrated solution required is 9.95 mL
<u>Explanation:</u>
To calculate the pH of the solution, we use the equation:
![pH=-\log[H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%5BH%5E%2B%5D)
We are given:
pH = 0.70
Putting values in above equation, we get:
![0.70=-\log[H^+]](https://tex.z-dn.net/?f=0.70%3D-%5Clog%5BH%5E%2B%5D)
![[H^+]=10^{-0.70}=0.199M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D10%5E%7B-0.70%7D%3D0.199M)
1 mole of nitric acid produces 1 mole of hydrogen ions and 1 mole of nitrate ions.
Molarity of nitric acid = 0.199 M
To calculate the volume of the concentrated solution, we use the equation:
![M_1V_1=M_2V_2](https://tex.z-dn.net/?f=M_1V_1%3DM_2V_2)
where,
are the molarity and volume of the concentrated nitric acid solution
are the molarity and volume of diluted nitric acid solution
We are given:
![M_1=7.0M\\V_1=?mL\\M_2=0.199M\\V_2=350mL](https://tex.z-dn.net/?f=M_1%3D7.0M%5C%5CV_1%3D%3FmL%5C%5CM_2%3D0.199M%5C%5CV_2%3D350mL)
Putting values in above equation, we get:
![7.0\times V_1=0.199\times 350.0\\\\V_1=\frac{0.199\times 350}{7.0}=9.95mL](https://tex.z-dn.net/?f=7.0%5Ctimes%20V_1%3D0.199%5Ctimes%20350.0%5C%5C%5C%5CV_1%3D%5Cfrac%7B0.199%5Ctimes%20350%7D%7B7.0%7D%3D9.95mL)
Hence, the volume of concentrated solution required is 9.95 mL
Kinetic Energy which relies on an objects mass and velocity and Potential Energy which relies on the height of the object
Answer: B.The atoms ⚛️ in Damien’s candy are vibrating faster ❣️ Yur Welcome
Answer:
Physical change
Explanation:
Physical change -
It is the type of reversible change , where there is change in the state of the matter , is referred to as a physical change .
There is no chemical process involved during state change , i.e. , no new substance is formed .
Hence , from the given statement of the question, the correct term is physical change.
Answer: Internal energy is the total kinetic energy and potential energy of all the particles (atoms and molecules) that make up a system.
Explanation:
Internal energy is the total kinetic energy and potential energy of all the particles (atoms and molecules) that make up a system. If a change of state happen, the energy needed for a substance to change state is called latent heat.
Hope this helps :)