Describe the procedure for diluting the .10 M solution to a concentration of .020 M using distilled water, a 100mL volumetric flask, and a pipet or burst

Procedure :

Take 20 ml of 0.1 M solution and add distilled water until reaches 100 ml

Given

0.1 M and 0.02 M solution

100 ml volumetric flask

Required

Diluting procedure

Solution

To find the initial volume that needs to be taken from the 0.1 M solution to be diluted, we can use the dilution formula

M₁V₁ = M₂V₂

0.1 M . V₁ = 0.02 M x 100 ml

V₁ = 20 ml

So we take 20 ml of 0.1 M solution with a pipette, put it into a volumetric flask and add distilled water until the volume reaches 100 ml

he would use the colour black

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.