Explanation:
(Ques- A) Why does the first method for determining volume work only for a regular-shaped object?
<u>(Ans- A)</u> <em>Because the method requires precise dimensions of objects for result, which is not possible for irregular shaped objects.</em>
(Ques - B) Will the second method for determining volume work for any object or just an odd-shaped one? Why?
<u>(Ans-B)</u> <em>It will work for both regular and irregular shaped objects since both displace equal volumes of water.</em>
(Ques - C) Is one method of measurement more accurate than the other? Why or why not?
<u>(Ans-C)</u> <em>Both are pretty accurate, with some experimental errors which may creep in accidentally. </em>
(Ques- D) Would the displacement method of measurement work for a cube of sugar? What about a cork? Why?
<u>(Ans - D)</u> <em>No, the method would not work because sugar being soluble, will dissolve in water. </em>
<em>No, the method would not work because sugar being soluble, will dissolve in water. Cork is less dense than water so floats on it, with only part of it submerged in water, resulting in displacement of less volume of water than actual volume of Cork.</em>
(Ques-E) What did you find out from this investigation? Be thoughtful in your answer.
<u>(Ans- E)</u> <em>I learnt about determining volume of different objects from this investigation. </em>(Sorry, I know its not a very thoughtful answer)
Answer:
0.515 g
Explanation:
<em>Acetone (C₃H₆O) has a boiling point of 56.5 °C. How many grams of the acetone vapor would occupy the 250 mL Erlenmeyer flask at 57 °C and 730 mmHg?</em>
<em />
Step 1: Given data
Temperature (T): 57°C
Pressure (P): 730 mmHg
Volume (V): 250 mL
Step 2: Convert "T" to Kelvin
We will use the following expression.
K = °C + 273.15 = 57°C + 273.15 = 330 K
Step 3: Convert "P" to atm
We will use the conversion factor 1 atm = 760 mmHg.
730 mmHg × (1 atm/760 mmHg) = 0.961 atm
Step 4: Convert "V" to L
We will use the conversion factor 1 L = 1,000 mL.
250 mL × (1 L/1,000 mL) = 0.250 L
Step 5: Calculate the moles (n) of acetone
We will use the ideal gas equation.
P × V = n × R × T
n = P × V/R × T
n = 0.961 atm × 0.250 L/(0.0821 atm.L/mol.K) × 330 K
n = 8.87 × 10⁻³ mol
Step 6: Calculate the mass corresponding to 8.87 × 10⁻³ moles of acetone
The molar mass of acetone is 58.08 g/mol.
8.87 × 10⁻³ mol × 58.08 g/mol = 0.515 g
Besides nylon, HCl is formed from the reaction of adipoyl chloride and 1,6- diaminohexane , but HCl is the byproduct molecule.
<h3>What is formed when adipoyl chloride and 1,6-diaminohexane reacts with each other and what are the by products?</h3>
- Adipoyl chloride is the monomer and hexamethylinediamine is also the monomer which reacts together to form polymer.
- The polymer formed is named nylon6,6 which is a co polymer and nylon 6,6 find its use in various other activities of life.
- Nylon6,6 is a copolymer since the participation of two monomers , and not a single monomer undergoing decomposition.
- Nylon6,6 is formed with an elimination of small molecule of HCl which is considered to be a by product .
- It is formed by a condensation reaction and hence HCl is the product formed from the reaction of adipoyl chloride and 1,6- diaminohexane.
To know more about nylon visit:
brainly.com/question/10278626
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