Answer:
Perchloric acid is one of the six common strong acids, which means 100% dissociation in water. Thus, [HClO4] = [H+].
pH = -log 2.65 x 10^-5 = 4.58
Explanation:
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Volume and pressure are the properties of the gas that are related by Boyle's law of the ideal gas equation.
<h3>What is Boyle's law?</h3>
Boyle's law is the gas law that gives the relation between the pressure and the volume of the gas at constant moles and temperature conditions. The law is given as,
PV = k (k = constant)
Here P is the pressure and V is the volume of the ideal gas.
From the law, it can be stated that the pressure of the gas is in inverse relation to the volume of the gas. Hence increase in volume decreases the pressure and vice versa.
Therefore, the inverse relationship between the pressure and volume is given by Boyle's law.
Learn more about Boyle's law here:
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Answer:
Explanation:
Proteins have two main secondary structures: alpha helices, which are spirals formed by hydrogen bonds between amino acids, and beta pleated sheets, [ which are formed by a bend in the amino acid with alternating hydrogen bonding between amino acids.
Answer : The enthalpy change for the reaction is, 419.5 kJ
Explanation :
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
The given chemical reaction is,

Now we have to determine the enthalpy change for the reaction below:

By reversing and then dividing the reaction by 2, we get the enthalpy change for the reaction.
The expression will be:



Therefore, the enthalpy change for the reaction is, 419.5 kJ