Given :
Concentration of hydrogen ions, 
.
To Find :
The pH of a solution.
Solution :
We know, pH of a solution is given by :
![pH = - log [ H^+]\\\\pH = -log ( 10^{-3})\\\\pH = 3](https://tex.z-dn.net/?f=pH%20%3D%20-%20log%20%5B%20H%5E%2B%5D%5C%5C%5C%5CpH%20%3D%20-log%20%28%2010%5E%7B-3%7D%29%5C%5C%5C%5CpH%20%3D%203)
Therefore, the pH of the solution is 3 .
Answer:
The energy of moving parts and motion
Explanation:
Mechanical energy doesn't have change in temperature or heat, so electricity and heat would be cancelled out. Mechanical energy is more about motion.
Cesium.
Groups are the vertical columns that run up and down while periods are the horizontal rows. So to find the answer to this, go to the first column (Group 1) and find the sixth period (row 6) which will land you on Cesium, element 55.
Hope this helps!
X4O10
Let molar mass of X be y
molar mass = 4y + 10 x 16 = 4y+160
so, moles = 85.2 / (4y+160)
Moles of oxygen = 10 x [85.2 / (4y+160) ]
Mass of oxygen = 16 x 10 x [85.2 / (4y+160) ]
which is 48.0
so, 48 = 16 x 10 x [85.2 / (4y+160) ]
Solve the equation to get y.
y = 31
