Explain this statement in your own words and give an example. The properties of the substances around us depend on the structure of the particles that compose them.
Explain this statement in your own words and give an example. The properties of the substances around us depend on the structure of the particles that compose them.
Explain this statement in your own words and give an example. The properties of the substances around us depend on the structure of the particles that compose them.
Expert Solution & Answer
Interpretation Introduction
To determine: Explanation with an example of the sentence “The properties of the substances around us depend on the structure of the particles that compose them”.
Answer to Problem 1E
Solution: A small change in structure, like change in shape results in significant change in properties. For example the shape of water molecule, H2O is bent in nature but if we suppose that it would possess linear structure that is two hydrogen and oxygen atoms are in a straight line then it will result in significant change in properties like weaker attractive forces between water molecules, lower boiling point, solubility etc.
Explanation of Solution
Water molecule H2O is composed of two hydrogen and one oxygen atom. The specific geometrical arrangements of these three atoms to form water molecule results in the formation of bent structure, which determines its chemical properties. Suppose the water molecule possess linear structure that is two hydrogen and oxygen atoms are in a straight line, this change in shape of water molecule will results in significant change in properties that is the attractive forces between the molecules of water will weaken up so, they have less tendency to stay together and will evaporate easily into a gas phase, resulting in lower boiling point. The change in structure will also affect other chemical properties like solubility, freezing point etc.
Conclusion
A small change in structure, like change in shape results in significant change in properties. For example the shape of water molecule, H2O is bent in nature but if we suppose that it would possess linear structure that is two hydrogen and oxygen are in a straight line then it will result in significant change in properties like weaker attractive forces between water molecules, lower boiling point, solubility etc.
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Arrange the solutions in order of increasing acidity. (Note that K (HF) = 6.8 x 10 and K (NH3) = 1.8 × 10-5)
Rank solutions from least acidity to greatest acidity. To rank items as equivalent, overlap them.
▸ View Available Hint(s)
Least acidity
NH&F NaBr NaOH
NH,Br NaCIO
Reset
Greatest acidity
1. Consider the following molecular-level diagrams of a titration.
O-HA molecule
-Aion
°°
о
°
(a)
о
(b)
(c)
(d)
a. Which diagram best illustrates the microscopic representation for the
EQUIVALENCE POINT in a titration of a weak acid (HA) with sodium.
hydroxide?
(e)
Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single
file upload below:
Review of this week's reaction:
H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O --->
H₂NC(=NH)N(CH3)CH2COOH (creatine)
Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing
the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts)
Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts)
Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3
pts)
NH2(C=NH)-N(CH)CH2COOH
This bond
Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem
Q9 is valid). (4 pts)
Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should
be ready to understand the first half of one of the Grignard reactions presented in a past…
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