If it takes 30.3ml of 2.5m naoh to neutralize 20ml of h2so4 in a battery. what is the molarity of h2so4

              1.89 M

Explanation:

First calculate moles of NaOH

M = moles/Vol in L

moles = M x Vol in L

moles = 2.5 M x 0.0303 L

moles = 0.07575 moles

Also, the reaction between NaOH and H2SO4 is

2 NaOH + H2SO4 >  Na2SO4 + 2 H2O

For every one mole of H2SO4, 2 moles of NaOH reacts.

So, for 0.07575 moles of NaOH, 0.037875 moles of H2SO4 will react.

Now, calculate molarity of H2SO4

M = moles / Vol in L

M = 0.037875 mol / 0.02 L

M = 1.89 M

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds