pOH scale is used to determine the basicity of a solution
pH scale is used to determine the acidity of a solution
pH and pOH are related in the following formula
pH + pOH = 14
once pOH is known we can calculate pH
pOH = 8.7
pH = 14 - 8.7
pH = 5.3
pH of the solution is 5.3
when pH is less than 7 the solution is said to be acidic
when pH is equal to 7 then solution is neutral
when pH is more than 7 then solution is basic
the pH of the solution here is 5.3 which is less than 7, therefore solution is acidic
acidic solution with pH of 5.3
B. heat of reaction.
C. heat of combustion.
D. heat content.
The answer for above statement:
D. heat content.
Explanation:
Enthalpy is a measure of the total energy of a thermodynamic system. It includes the internal energy, which is the energy required to create a system, and the amount of energy required to make room for it by displacing its environment and establishing its volume and pressure.
Heat content - (thermodynamics) a physical science amount adequate the interior energy of a system and the merchandise of its volume and pressure.
Ans D) heat content
Enthalpy (H) is a thermodynamic state function which according to the first law of thermodynamics is a sum of internal energy (E) and the pressure- volume (PV) work.
i.e. H = E + PV
Thus, enthalpy is the total heat content of a system which includes contributions from both kinetic and potential energy.
B
C
The wave with the longest wavelength is (A,B,C). The wave with the smallest amplitude is (A,B,C). The wave with the most energy is (A,B,C).
A is the wave with the longest wavelength. The graph clearly shows this since wave A has a larger wavelength than waves B and C. Wave A has the longest wavelength when compared to the other two waves.
C is the wave with the least amplitude. The graph shows this since wave C has a significantly lesser amplitude than waves A and B. Wave C has the least amplitude when compared to the other two waves. B is the most energetic wave.
The graph shows this because wave B has a larger amplitude than waves A and C. Wave B has the greatest amplitude when compared to the other two has the more energy in comparison to the two.
The longest wavelength wave has the lowest frequency and the lowest energy. A wave's wavelength is inversely related to its frequency, which implies that as the wavelength grows, so does the frequency. Because energy is proportional to frequency, the wave with the longest wavelength has the least energy.
The wave with the smallest amplitude has the least amount of energy. The largest displacement of a wave from its equilibrium position is referred to as its amplitude. The energy of a wave is exactly proportional to its amplitude, therefore as the amplitude falls, so does the energy.
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Answer is: hydroxyl group (-OH).
A functional group is a group of atoms that determines many of the properties of an organic molecule.
Functional group for alcohol is hydroxyl group or hydroxy group (-OH).
In organic chemistry, alcohol and carboxylic acids contain hydroxy groups.
The atoms of functional groups are linked to each other and to the rest of the molecule with covalent bonds.