Enter your answer in the provided box. Calcium hydroxide may be used to neutralize (completely react with) aqueous hydrochloric
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<u>Answer:</u>
<u>For a:</u> The number of molecules of nitrogen dioxide is
<u>For b:</u> The mass of nitric acid formed is 54.81 grams
<u>For c:</u> The mass of nitric acid formed is 206 grams
<u>Explanation:</u>
The given chemical reaction follows:
- <u>For a:</u>
By Stoichiometry of the reaction:
1 mole of water reacts with 3 moles of nitrogen dioxide
So, 0.250 moles of water will react with of nitrogen dioxide
According to mole concept:
1 mole of a compound contains number of molecules.
So, 0.75 moles of nitrogen dioxide will contain number of molecules
Hence, the number of molecules of nitrogen dioxide is
- <u>For b:</u>
To calculate the number of moles, we use the equation:
.....(1)
Given mass of nitrogen dioxide = 60.0 g
Molar mass of nitrogen dioxide = 46 g/mol
Putting values in equation 1, we get:
By Stoichiometry of the reaction:
3 moles of nitrogen dioxide produces 2 mole of nitric acid
So, 1.304 moles of nitrogen dioxide will produce = moles of nitric acid
Now, calculating the mass of nitric acid from equation 1, we get:
Molar mass of nitric acid = 63 g/mol
Moles of nitric acid = 0.870 moles
Putting values in equation 1, we get:
Hence, the mass of nitric acid formed is 54.81 grams
- <u>For c:</u>
- <u>For nitrogen dioxide:</u>
Given mass of nitrogen dioxide = 225 g
Molar mass of nitrogen dioxide = 46 g/mol
Putting values in equation 1, we get:
- <u>For water:</u>
Given mass of water = 55.2 g
Molar mass of water = 18 g/mol
Putting values in equation 1, we get:
By Stoichiometry of the reaction:
3 moles of nitrogen dioxide reacts with 1 mole of water
So, 4.90 moles of nitrogen dioxide will react with = of water
As, given amount of water is more than the required amount. So, it is considered as an excess reagent.
Thus, nitrogen dioxide is considered as a limiting reagent because it limits the formation of product.
By Stoichiometry of the reaction:
3 mole of nitrogen dioxide produces 2 moles of nitric acid
So, 4.90 moles of nitrogen dioxide will produce of nitric acid
Now, calculating the mass of nitric acid from equation 1, we get:
Molar mass of nitric acid = 63 g/mol
Moles of nitric acid = 3.27 moles
Putting values in equation 1, we get:
Hence, the mass of nitric acid formed is 206 grams
If the concentration of acetyl chloride is increased ten times the rate of reaction is increased ten times.
The conversion of acetyl chloride to methyl acetate is a substitution reaction. Recall that a substitution reaction is one in which a moiety in a molecule is replaced by another.
In this reaction, the CH3O- ion replaces the chloride ion. In the first step, the CH3O- ion attacks the substrate in a slow step. This creates a tetrahedral intermediate. Loss of the chloride ion yields the methyl acetate product.
The rate determining step is the formation of the tetrahedral intermediate. Since the reaction is first order in the acetyl chloride, if its concentration is increased ten times the rate of reaction is increased ten times.
Learn more: brainly.com/question/5624100
