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chem 162 exam Pack Correctly Answered Questions | UpToDate
chem 162 exam Pack Correctly Answered Questions | UpToDate
[Meer zien]chem 162 exam Pack Correctly Answered Questions | UpToDate
[Meer zien]Crystalline solid 
: a solid made of an ordered array of atoms, ions, or molecules 
Amorphous solid 
: a solid that lacks long-range order for the atoms, ions, or molecules in its structure 
Molecular solid 
: a solid formed by neutral, covalently bonded molecules held together by IMFs 
Ionic solid ...
Voorbeeld 1 van de 2 pagina's
In winkelwagenCrystalline solid 
: a solid made of an ordered array of atoms, ions, or molecules 
Amorphous solid 
: a solid that lacks long-range order for the atoms, ions, or molecules in its structure 
Molecular solid 
: a solid formed by neutral, covalently bonded molecules held together by IMFs 
Ionic solid ...
Saturated 
: no double bonds between carbons 
Unsaturated 
: at least one double bond between carbon atoms 
Alkanes 
: sp3 hybridized carbons 
2 | P a g e 
Bond angle - 109.5 
tetrahedral 
saturated 
no double bonds 
end with prefix - ane 
rotation around the single bonds is easy (facile) 
Alkene
Voorbeeld 2 van de 7 pagina's
In winkelwagenSaturated 
: no double bonds between carbons 
Unsaturated 
: at least one double bond between carbon atoms 
Alkanes 
: sp3 hybridized carbons 
2 | P a g e 
Bond angle - 109.5 
tetrahedral 
saturated 
no double bonds 
end with prefix - ane 
rotation around the single bonds is easy (facile) 
Alkene
exothermic reaction 
: a chemical reaction that releases energy to its surroundings 
"Heat" is best described as 
: the energy transferred as a result of a temperature difference 
endothermic reaction 
: A reaction that ABSORBS energy in the form of heat 
Iodine Vapor depositing on a cool surface ...
Voorbeeld 2 van de 11 pagina's
In winkelwagenexothermic reaction 
: a chemical reaction that releases energy to its surroundings 
"Heat" is best described as 
: the energy transferred as a result of a temperature difference 
endothermic reaction 
: A reaction that ABSORBS energy in the form of heat 
Iodine Vapor depositing on a cool surface ...
Strong Acids 
: HCl, HBr, HI, HNO3, H2SO4, HClO4 
Strong Bases 
: LiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 
Acid + Base = 
: Salt + Water 
COOH Group 
: Weak acid 
Hydroxide(OH) Salts 
: Strong Bases 
What do acids do with protons? 
: Donate them 
What do bases do with protons? 
2 | P a g e 
: Acc...
Voorbeeld 1 van de 4 pagina's
In winkelwagenStrong Acids 
: HCl, HBr, HI, HNO3, H2SO4, HClO4 
Strong Bases 
: LiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 
Acid + Base = 
: Salt + Water 
COOH Group 
: Weak acid 
Hydroxide(OH) Salts 
: Strong Bases 
What do acids do with protons? 
: Donate them 
What do bases do with protons? 
2 | P a g e 
: Acc...
a) When Na metal reacts with water 368.6KJ of energy is evolved sulfur (S8) burns in air to 
produce sulfur dioxide, reaction evolves 9.31KJ of heat per gram of S8, write the 
thermalchemical equation. 
b) the dissociation of 1 mol sulfur dioxide in elements 
c) you burn 15.0g of S8 in air. How mu...
Voorbeeld 2 van de 6 pagina's
In winkelwagena) When Na metal reacts with water 368.6KJ of energy is evolved sulfur (S8) burns in air to 
produce sulfur dioxide, reaction evolves 9.31KJ of heat per gram of S8, write the 
thermalchemical equation. 
b) the dissociation of 1 mol sulfur dioxide in elements 
c) you burn 15.0g of S8 in air. How mu...
Calculate molarity when 734g of lithium sulfate are dissolved in 2500mL of water? 
: 2.7 Molar 
Calculate the molarity when 9.0x10^23 molecules of CCl4 are dissolved in 500mL of water? 
: 3 Molar 
How much water would 1 need to add to a solution made of 500mL of a 2.4M KCl solution to 
make the fin...
Voorbeeld 1 van de 4 pagina's
In winkelwagenCalculate molarity when 734g of lithium sulfate are dissolved in 2500mL of water? 
: 2.7 Molar 
Calculate the molarity when 9.0x10^23 molecules of CCl4 are dissolved in 500mL of water? 
: 3 Molar 
How much water would 1 need to add to a solution made of 500mL of a 2.4M KCl solution to 
make the fin...
What is a solute? 
: the substance that is dissolved 
What is a solvent? 
: the substance in which the solute dissolves 
Usually, is there more solvent or solute present in a solution? 
: solvent 
When determining the enthalpy of solution, is deltaH1 and deltaH2 endothermic or exothermic? 
: endothe...
Voorbeeld 2 van de 11 pagina's
In winkelwagenWhat is a solute? 
: the substance that is dissolved 
What is a solvent? 
: the substance in which the solute dissolves 
Usually, is there more solvent or solute present in a solution? 
: solvent 
When determining the enthalpy of solution, is deltaH1 and deltaH2 endothermic or exothermic? 
: endothe...
What is the formula for Sulfuric acid? 
: H₂SO₄ 
What is the formula for Hydrochloric acid? 
: HCl 
What is the formula for Nitric acid? 
: HNO₃ 
What are the three strong acids we will be focusing on? 
: Sulfuric acid, Hydrochloric acid, and Nitric acid 
What is the formula for the Hydronium ...
Voorbeeld 1 van de 3 pagina's
In winkelwagenWhat is the formula for Sulfuric acid? 
: H₂SO₄ 
What is the formula for Hydrochloric acid? 
: HCl 
What is the formula for Nitric acid? 
: HNO₃ 
What are the three strong acids we will be focusing on? 
: Sulfuric acid, Hydrochloric acid, and Nitric acid 
What is the formula for the Hydronium ...
When a redox reaction within a voltaic cell occurs under conditions in which _______, the 
greater concentration of reactants relative to products drives the reaction to the_______, resulting 
in ______. 
: Q<1, right, Ecell>E∘cell 
When a redox reaction within an electrochemical cell occu...
Voorbeeld 2 van de 12 pagina's
In winkelwagenWhen a redox reaction within a voltaic cell occurs under conditions in which _______, the 
greater concentration of reactants relative to products drives the reaction to the_______, resulting 
in ______. 
: Q<1, right, Ecell>E∘cell 
When a redox reaction within an electrochemical cell occu...
nitrogen gas 
: N₂ 
hydrogen gas 
: H₂ 
oxygen gas 
: O₂ 
fluorine gas 
: F₂ 
chlorine gas 
: Cl₂ 
iodine gas 
: I₂ 
bromine gas 
2 | P a g e 
: Br₂ 
Ammonium 
: NH₄⁺ 
Carbonate 
: CO₃²⁻ 
Hydrogen Carbonate 
: HCO₃⁻ 
Acetate 
: CH₃COO⁻ 
Hydroxide 
: OH⁻ 
Nitrate 
: N...
Voorbeeld 1 van de 4 pagina's
In winkelwagennitrogen gas 
: N₂ 
hydrogen gas 
: H₂ 
oxygen gas 
: O₂ 
fluorine gas 
: F₂ 
chlorine gas 
: Cl₂ 
iodine gas 
: I₂ 
bromine gas 
2 | P a g e 
: Br₂ 
Ammonium 
: NH₄⁺ 
Carbonate 
: CO₃²⁻ 
Hydrogen Carbonate 
: HCO₃⁻ 
Acetate 
: CH₃COO⁻ 
Hydroxide 
: OH⁻ 
Nitrate 
: N...
1) What is the pH of a solution of 0.020 M HNO3? 
: 
2.) Which of the following is the strongest acid? 
a) H2SeO3 b) H2SeO c) H2SeO2 d) all the same e) none 
: a) H2SeO3 
-the more oxygens, the stronger the acid 
3.) What is the pH of a 0.0050 M solution of sodium cyanide? (HCN Ka = 6.2 x 10-10) 
a...
Voorbeeld 2 van de 9 pagina's
In winkelwagen1) What is the pH of a solution of 0.020 M HNO3? 
: 
2.) Which of the following is the strongest acid? 
a) H2SeO3 b) H2SeO c) H2SeO2 d) all the same e) none 
: a) H2SeO3 
-the more oxygens, the stronger the acid 
3.) What is the pH of a 0.0050 M solution of sodium cyanide? (HCN Ka = 6.2 x 10-10) 
a...
If 0.100 mol of solute is added to 0.500 L of solvent with a density of 0.790 g/mL, the molality 
of the solution is 
a. 0.166 m 
b. 0.253 m 
c. 1.27x10^-4 m 
d. none 
e. 0.200 m 
: b. 
This question counts the weight of two questions. The half-life of a reactant in a first-order 
reaction was mea...
Voorbeeld 4 van de 42 pagina's
In winkelwagenIf 0.100 mol of solute is added to 0.500 L of solvent with a density of 0.790 g/mL, the molality 
of the solution is 
a. 0.166 m 
b. 0.253 m 
c. 1.27x10^-4 m 
d. none 
e. 0.200 m 
: b. 
This question counts the weight of two questions. The half-life of a reactant in a first-order 
reaction was mea...
If 0.100 mol of solute is added to 0.500 L of solvent with a density of 0.790 g/mL, the molality 
of the solution is 
a. 0.166 m 
b. 0.253 m 
c. 1.27x10^-4 m 
d. none 
e. 0.200 m 
: b. 
This question counts the weight of two questions. The half-life of a reactant in a first-order 
reaction was mea...
Voorbeeld 4 van de 42 pagina's
In winkelwagenIf 0.100 mol of solute is added to 0.500 L of solvent with a density of 0.790 g/mL, the molality 
of the solution is 
a. 0.166 m 
b. 0.253 m 
c. 1.27x10^-4 m 
d. none 
e. 0.200 m 
: b. 
This question counts the weight of two questions. The half-life of a reactant in a first-order 
reaction was mea...
Chemistry definition 
: Study of structure, properties, transformations of matter 
Matter 
: Anything that has mass + takes up space 
Phases: solid, liquid, gas 
Condensed phases = solids + liquids 
Intermolecular Forces (IMF) 
: = Interactions between molecules/atoms/ions 
Solution 
: = Homogenous ...
Voorbeeld 4 van de 102 pagina's
In winkelwagenChemistry definition 
: Study of structure, properties, transformations of matter 
Matter 
: Anything that has mass + takes up space 
Phases: solid, liquid, gas 
Condensed phases = solids + liquids 
Intermolecular Forces (IMF) 
: = Interactions between molecules/atoms/ions 
Solution 
: = Homogenous ...
Rules for Assigning Oxidation States 
: 1. Elements in their elemental form are in the zero oxidation state. 
2. Group 1 metals are +1 and Group 2 metals are +2. 
3. Hydrogen is +1 except when bonded to a metal only (then it's -1) 
4. Transition elements must be determined from anion's charge (exc...
Voorbeeld 1 van de 4 pagina's
In winkelwagenRules for Assigning Oxidation States 
: 1. Elements in their elemental form are in the zero oxidation state. 
2. Group 1 metals are +1 and Group 2 metals are +2. 
3. Hydrogen is +1 except when bonded to a metal only (then it's -1) 
4. Transition elements must be determined from anion's charge (exc...
Solution 
: A homogeneous mixture of two or more substances 
solvent 
: the substance in which the solute dissolves 
solute 
: A substance that is dissolved in a solution. 
changing concentration 
: M1V1=M2V2 
Molarity (M) 
: moles of solute/liters of solution 
Types of bonds 
: ionic, polar covalen...
Voorbeeld 2 van de 5 pagina's
In winkelwagenSolution 
: A homogeneous mixture of two or more substances 
solvent 
: the substance in which the solute dissolves 
solute 
: A substance that is dissolved in a solution. 
changing concentration 
: M1V1=M2V2 
Molarity (M) 
: moles of solute/liters of solution 
Types of bonds 
: ionic, polar covalen...
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