Answer:
The scientist have developed to classify organisms because the living things with similarities can put into groups, which can further make easy to understand the relationship between them.
Explanation:
The scientist have classified organisms in different groups which can make their study easier. In this manner the organisms with same character will be in same group and their relationship and behavior with themselves as well as with others can be studied easily. It will make things less confusing. In this way the inheritance and genetic behavior can also be studied easily. This classification are based on various other categories like structure, function and also relationship with others.
One of the many ways in order to solve for the vapor pressure of pure components at a given temperature is through the Antoine's equation which is written below,
P = 10^(A - B/C+T)
where A, B, and C are constants and T is the temperature in °C and P is the vapor pressure in mm Hg.
For hexane,
A = 7.01
B = 1246.33
C = 232.988
Substituting the known values,
P = 10^(7.01 - 1246.33/232.988+25)
<em> P = 151.199 mm Hg</em>
Answer: There are 4 oxygen molecules in 3.34 of asirin.
Answer:
pH 12
Explanation:
Hydrogen ion concentration is usually expressed in terms of pH, which is the logarithm of the reciprocal of the hydrogen ion concentration. The molar concentration of dissolved hydrogen ions in solution is a measure of acidity. The greater the concentration of hydrogen ions in solution, the greater its acidity. This concentration can range over a tremendous range, from 10^-1 M to 10^-14 M. A convenient system of expressing this range of concentrations is the pH scale which means power of hydrogen.
The higher the pH value the lesser the hydrogen ion concentration and the greater the hydroxide ion concentration. A pH value of 1-6 indicates acidity (high hydrogen ion concentration) a pH of 7 indicates neutrality while a pH of 8-12 indicates alkalinity (high hydroxide ion concentration).
