Since the pH is a logarithmic scale each increase and or decrease in H+ concentration, changes the pH by 10 fold or 10x the amount. In this case stomach acid is 10x more acidic than lemon juice.
It is the first one because haven't you ever noticed when you hold a mirror a certain way the light can reflect a light up another surface? so, therefore, the answer that makes the most sense would be the first. :)
Correct question
The density of liquid mercury is 13.6 g/mL. What is its density in units of lb/in3? (2.5 cm = 1 in., 2.205 lbs= 1 kg., 1000 g =1 kg, 1 mL = 1 cm³)
Answer:
![\rho0.4916\ lb/in^3](https://tex.z-dn.net/?f=%5Crho0.4916%5C%20lb%2Fin%5E3)
Explanation:
Given that;-
The density = 13.6 g/mL
Also, 1 kg = 2.205 lb
1 kg = 1000 g
So, 1000 g = 2.205 lb
1 g = 0.002205 lb
Also,
1 in = 2.54 cm
1 in³ = 16.39 cm³
1 cm³ = 1 mL
So, 1 in³ = 16.39 mL
1 mL = 0.061 in³
The expression for the calculation of density is shown below as:-
![\rho=\frac{m}{V}](https://tex.z-dn.net/?f=%5Crho%3D%5Cfrac%7Bm%7D%7BV%7D)
Thus,
![\rho=\frac{13.6\ g}{1\ mL}=\frac{13.6\times 0.002205\ lb}{0.061\ in^3}=0.4916\ lb/in^3](https://tex.z-dn.net/?f=%5Crho%3D%5Cfrac%7B13.6%5C%20g%7D%7B1%5C%20mL%7D%3D%5Cfrac%7B13.6%5Ctimes%200.002205%5C%20lb%7D%7B0.061%5C%20in%5E3%7D%3D0.4916%5C%20lb%2Fin%5E3)
Answer:
<em>The pressure and the volume are inversely related in Boyle's Law. In Kinetic theory pressure is created by the collision of particles. If the volume is greater the number of collisions and pressure will be less. So volume and pressure are inversely related if the temperature and total kinetic energy is kept constant.</em>
Explanation:
hope to help you