Nitric acid (HNO3) is a strong acid, and it is titrated with a standard solution of sodium hydroxide (NaOH), a strong base. Whic
2 answers:
<u>Answer:</u> The correct answer is Option c.
<u>Explanation:</u>
pH is the measure of acidity of the solution. It is known as power of hydrogen. It is measured in a scale from 0 to 14. The solutions having pH from 0.1 to 6.9 is known as acidic solution, the solution having a pH of 7.1 to 14 is known as basic solution. The solution having pH 7 is known as neutral solution.
Nitric acid is a strong acid because it completely dissociates into its respective ions. The pH of this solution is very low.
Sodium hydroxide (NaOH) is a strong base because it completely dissociates into its respective ions. The pH of this solution is very high.
When a solution of low pH reacts with a solution of high pH, it results in the solution having a neutral pH which is 7.
Hence, the correct answer is option c.
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The image is not given in the question, it is attached below:
<u>Answer:</u> The excess reactant is NO, the limiting reactant is CO and the products are shown in the image attached below.
<u>Explanation:</u>
In the given image:
Red spheres represent oxygen atoms, blue spheres represent nitrogen atoms and black spheres represent carbon atoms
The combination of 1 black and 2 red spheres will represent carbon dioxide compound
The combination of 2 blue spheres will represent nitrogen molecule
The combination of 1 blue and 1 red sphere will represent nitrogen monoxide compound
The combination of 1 black and 1 red sphere will represent nitrogen monoxide compound
Limiting reagent is defined as the reagent which is completely consumed in the reaction and limits the formation of the product.
Excess reagent is defined as the reagent which is left behind after the completion of the reaction.
We are given:
Given moles of NO = 6 moles
Given moles of CO = 4 moles
For the given chemical equation:
By stoichiometry of the reaction:
If 2 moles of CO reacts with 2 moles of NO
So, 4 moles of CO will react with = of NO
As the given amount of NO is more than the required amount. Thus, it is present in excess and is considered as an excess reagent.
Thus, CO is considered a limiting reagent because it limits the formation of the product.
Hence, the excess reactant is NO, the limiting reactant is CO and the products are shown in the image attached below.
