In chemistry we always say that “like dissolves in like”. A perfect example of this is...
- In chemistry we always say that “like dissolves in like”. A perfect example of this is ethanol in water versus oil in water. Ethanol and water have very similar intermolecular forces, therefore we could say that they are very similar and that ethanol will dissolve in water. Oil and water have very different intermolecular forces, therefore they are not the same and oil will not dissolve in water. Based on this notion, would you predict that the ink in a washable overhead marker is soluble in ethanol or in oil based solvents and why?
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In chemistry we always say that “like dissolves in like”. A
perfect example of this is...
QUESTION 3 dissolves like." This rule means that predict whether or not a solute dissolves in...
QUESTION 3 dissolves like." This rule means that predict whether or not a solute dissolves in a solvent with the rule "like solute with the same mass as the solvent will dissolve. We can ОАа Ba Ос.а OD.a solute with the same diameter as the solvent will dissolve. solute with the same polarity as the solvent will dissolve. solute with the same phase as the solvent will dissolve. QUESTION 4 Which pair of solvents is NOT miscible? O A hexane...
these are the unknowns 3. Consider "Like dissolves Like" Polar solutes dissolve in and solutes dissolve...
these are the unknowns
3. Consider "Like dissolves Like" Polar solutes dissolve in and solutes dissolve in nonpolar solvents. Compounds_ and ___ have bonds and are soluble in which is polar. Compound is not soluble in water but is soluble in nonpolar solvent called _so it has _bonds. Compound is soluble in water but does not electricity so it must have bonds joining some parts that are (polar, nonpolar) 4. Based on conductivity, a) Which of the unknowns are electrolytes?...
Chromatography: Separating Mixtures Introduction: Magic marker inks are often mixtures of several compounds. Paper chromatography is...
Chromatography: Separating Mixtures Introduction: Magic marker inks are often mixtures of several compounds. Paper chromatography is a common method of separating various components of a mixture. After separation, you can observe the different colors that make up a particular color of magic marker ink. You can also calculate a ratio Rf, which compares how far each compound traveled to how far each solvent (substance that dissolves another substance) traveled during the experiment. Rf = Ds/Df Ds = Distance traveled by...
Essex County College Division of Biology and Chemistry General Chemistry II Problem Set I CHM 10 1. Which of the following mixtures have components which can be separated by filtration? A) colloi...
Essex County College Division of Biology and Chemistry General Chemistry II Problem Set I CHM 10 1. Which of the following mixtures have components which can be separated by filtration? A) colloids B) solutions D) all of these 2. In most liquid solutions, the component present in the larger amount is called the A) dispersed medium B) emulsifying agent C) solute D) solvent 3. lodine, 12(s), is more soluble in dichloromethane, CHCI than in water because A) both iodine and...
1. Solubility in WATER Check solubility of four solutes in water (H2O). For each solute record...
1. Solubility in WATER Check solubility of four solutes in water (H2O). For each solute record how many teaspoons dissolved in 1/2 cup of water. NaCl: Start out with 4 small glasses (cups) and add 1/2 cup of water to each. Put 1/2 level teaspoon (tsp) of salt (NaCl) into the first cup and stir. If it dissolves within 1 minute; add another 1/2 tsp of salt and stir. Count the number of 1/2 tsps you are adding. Repeat until...
Background In this lab, we are going to learn how to use a powerful separation technique...
Background In this lab, we are going to learn how to use a powerful separation technique called chromatography which can separate compounds that are quite similar to one another. Chromatography is a general type of separation in which a mixture of compounds passes through a stationary phase. Different compounds have different relative affinities for the mixture traveling along the stationary phase, or the mobile phase, and the stationary phase, causing these compounds to separate from one another. More specifically, we’re...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
PART IV. MISCIBILITY OF TWO LIQUIDS 1. For the first two liquids in Table IV-B (the...
PART IV. MISCIBILITY OF TWO LIQUIDS
1. For the first two liquids in Table IV-B (the solvents in the
miscibility tests), use the molecular structures provided in the
Introduction to identify each liquid as polar or nonpolar. Put an X
in the appropriate column.
2. For the remaining liquids in Table IV-B, determine if they
are primarily polar, primarily nonpolar, or both polar and polar
based on your observations in Table III-A and based on the polarity
of the solvent....
Synthesis using Carbonyla-Substitution Chemistry Preamble This experiment involves the synthesis of target molecules using a-substitution chemistry....
Synthesis using Carbonyla-Substitution Chemistry Preamble This experiment involves the synthesis of target molecules using a-substitution chemistry. You are assigned two target molecules, one of which is best synthesized by an alkylation approach, while the other is best synthesized by an addition or condensation approach. My two target molecules are number 2 and number 12 in the last page. You must do the following: 1. Perform a retrosynthetic analysis on the two target molecules assigned to you. In each case the...
10. When sodium chloride dissolves in water, the ions dissociate: NaCl (s) = Na+ (aq) +...
10. When sodium chloride
dissolves in water, the ions dissociate: NaCl (s) = Na+
(aq) + Cl- (aq)
Write ionic equations, similar to the one above, that describe
how NaNO3 and NaCH3CO2 each
dissociate as they dissolve in water. Include heat as a reactant or
product in each equation.
Here is what I answered:
NaNO3 (s) = Na+ +
NO3- + heat
NaC2H3O2 + Heat =
Na+ +
C2H3O2-(ag)
Lab data table attached to determine where to place heat.
AGO no...
QUESTION 3 dissolves like." This rule means that predict whether or not a solute dissolves in a solvent with the rule "like solute with the same mass as the solvent will dissolve. We can ОАа Ba Ос.а OD.a solute with the same diameter as the solvent will dissolve. solute with the same polarity as the solvent will dissolve. solute with the same phase as the solvent will dissolve. QUESTION 4 Which pair of solvents is NOT miscible? O A hexane...
these are the unknowns
3. Consider "Like dissolves Like" Polar solutes dissolve in and solutes dissolve in nonpolar solvents. Compounds_ and ___ have bonds and are soluble in which is polar. Compound is not soluble in water but is soluble in nonpolar solvent called _so it has _bonds. Compound is soluble in water but does not electricity so it must have bonds joining some parts that are (polar, nonpolar) 4. Based on conductivity, a) Which of the unknowns are electrolytes?...
Essex County College Division of Biology and Chemistry General Chemistry II Problem Set I CHM 10 1. Which of the following mixtures have components which can be separated by filtration? A) colloids B) solutions D) all of these 2. In most liquid solutions, the component present in the larger amount is called the A) dispersed medium B) emulsifying agent C) solute D) solvent 3. lodine, 12(s), is more soluble in dichloromethane, CHCI than in water because A) both iodine and...
Table 2: Alcohol and Ketone Standards GC Retention Times GC#: Retention time Alcohol Standard Mixture Phent ion= 2.05Smin low Peak 1 Compound Name: athanol Rapesnal utanal aclapeatanal 4.755min oilng 6.895min .230 min Peak 2 Compound Name: Peak 3 Compound Name: Peak 4 Compound Name: GC#:1 Ketone Standard Mixture Retention time 2.575un Peak 1 Compound Name: Acclono Butanon a Pentanone 2tHex anon Peak 2 Compound Name: min Peak 3 Compound Name: 615 min 1D. 307 min Peak 4 Compound Name: Part...
PART IV. MISCIBILITY OF TWO LIQUIDS
1. For the first two liquids in Table IV-B (the solvents in the
miscibility tests), use the molecular structures provided in the
Introduction to identify each liquid as polar or nonpolar. Put an X
in the appropriate column.
2. For the remaining liquids in Table IV-B, determine if they
are primarily polar, primarily nonpolar, or both polar and polar
based on your observations in Table III-A and based on the polarity
of the solvent....
Synthesis using Carbonyla-Substitution Chemistry Preamble This experiment involves the synthesis of target molecules using a-substitution chemistry. You are assigned two target molecules, one of which is best synthesized by an alkylation approach, while the other is best synthesized by an addition or condensation approach. My two target molecules are number 2 and number 12 in the last page. You must do the following: 1. Perform a retrosynthetic analysis on the two target molecules assigned to you. In each case the...
10. When sodium chloride
dissolves in water, the ions dissociate: NaCl (s) = Na+
(aq) + Cl- (aq)
Write ionic equations, similar to the one above, that describe
how NaNO3 and NaCH3CO2 each
dissociate as they dissolve in water. Include heat as a reactant or
product in each equation.
Here is what I answered:
NaNO3 (s) = Na+ +
NO3- + heat
NaC2H3O2 + Heat =
Na+ +
C2H3O2-(ag)
Lab data table attached to determine where to place heat.
AGO no...
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