The units parts per billion, or ppb, works just like percent, except that instead of being out of 100, it is out of 1,000,000,000 (1 x 109)
For instance, if the concentration of a certain molecule is 5 ppb, that means for every billion molecules in the mixture, only five are that one molecule.
So to convert ppb to a percent, divide by 1 x 107.
You can also use parts per million (ppm), which is out of 1 x 106, or parts per trillion, ppt, which is out of 1 x 1012.
% by mass of solute = mass of the solute/mass of the solution x 100
it is a genetic way of telling your brain to focus.
Which molecule moves to high concentration to low concentration
Osmosis is just a form of diffusion. They are both the movement of substances and both require a concentration gradient.
Concentration factor
the concentration of the titrant and the concentration of the titrate.
It is a narrative way of expressing 0.2 so there is no ambiguity about the value in the ones column.
another way of expressing 15 percent = 0.15 or 15/100 or 3/20
The term style refers to an artist's unique way of expressing ideas.
Touching is a way of expressing the feeling of desire. It could also mean a way of expressing confidence
A Demand
It is a way of expressing laughter in words.
A fraction.
The act of speaking or expressing your opinions in a pompous way.
.25
Ex. 1.23 Ex. 23/100
3 out of 4
(8×10)+(8×2)