Ice is constantly subliming to form a layer of water vapor
B- Carbon nitrogen and oxygen. All organisms are made up of carbon, oxygen is essential to breath, and nitrogen makes up most of earth's atmosphere.
PH is the concentration of Hydrogen ions (shown as [H+]) in a solution. The scale for pH is 0-14, with 0 being very high acidity and 14 being low acidity (basic). The scale is a logarithmic scale, so this means that each number is 10 times stronger than the number that precedes it.
The pH of the tomato juice is 4, which is more acidic than the black coffee with a pH of 5. Since there is a difference of one number between the two (scale of 1), then this tells us that the concentration of Hydrogen ions in the tomato juice is ten times GREATER than the [H+] of the black coffee.
Electronic configuration is given by
- 1s orbital is filled
- 2s orbital is unfilled
So
Molarity is defined as number of moles of solute dissolved per litre of solution.
M is the symbol used for it.
unit is= mol/ Litre Given:
Moles of solute KCl is 5
volume of solution is 2L
Calculation:
Molarity= Moles of Solute/ volume M= 5/2= 2.5 mol/L
