According to Arrhenius, NH4+ an acid or a base? Write an equation to support
1 answer:
According to Arrhenius definition of acids, is an acid.
According to Arrhenius definition of acids and bases, acid is any substance that produces hydrogen ion in solution as its only positive ion.
Following this definition, let us now consider what happens when is introduced into a water;
(aq)-------> NH3(aq) +
(aq)
Hence, according to Arrhenius definition of acids, is an acid.
For another example of Arrhenius acids, see
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The number of moles of oxygen in the gas is 1.5 L.
The correct option is (A).
<h3>What are moles? </h3>The mole is the International System of Units' foundation unit of material quantity.
Given,
The volume of gas is 33.6 L
Pressure is 1 atm.
Temperature is 0°C
Molar gas volume is 22.4 L
There is no temperature and pressure is 1 atm.
By formula of moles, volume is divided by molar mass
Thus, option A is correct. 1.5 L.
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Answer : The amount of heat released in the combustion is, 209.5 kJ
Explanation :
First we have to calculate the moles of Al and .
Now we have to calculate the limiting and excess reagent.
The balanced chemical reaction will be:
From the balanced reaction we conclude that
As, 3 mole of react with 4 mole of
So, 0.188 moles of react with
moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and
is a limiting reagent and it limits the formation of product.
Now we have to calculate the moles of
From the reaction, we conclude that
As, 3 mole of react to give 2 mole of
So, 0.188 moles of react to give
moles of
Now we have to calculate the amount of heat released in the combustion.
As, 1 mole of releases amount of heat = 1676 kJ
So, 0.125 mole of releases amount of heat =
Thus, the amount of heat released in the combustion is, 209.5 kJ