Review Test 1-Copy PDF

2/18/23, 3:06 AM Review Test 1-Copy Review Test 1-Copy Due: 11:59pm on Wednesday, February 22, 2023 To understand how points are awarded, read the Grading Policy for this assignment. Chapter 11 Reading Question 1 Pa...

2/18/23, 3:06 AM Review Test 1-Copy Review Test 1-Copy Due: 11:59pm on Wednesday, February 22, 2023 To understand how points are awarded, read the Grading Policy for this assignment. Chapter 11 Reading Question 1 Part A Which of the following is a characteristic property of the solid state of matter? You did not open hints for this part. ANSWER: A solid retains its own volume. A solid expands to fill its container. A solid is compressible. The rate of diffusion within a solid is high. Problem 11.18 - Enhanced - with Feedback Part A Which is generally stronger, intermolecular interactions or intramolecular interactions? ANSWER: https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 1/15 2/18/23, 3:06 AM Review Test 1-Copy Intermolecular interactions are generally stronger. Intramolecular interactions are generally stronger. These interactions are equally strong. Part B Which of these kinds of interactions are broken when a liquid is converted to a gas? ANSWER: Only intermolecular interactions are broken when a liquid is converted to a gas. Only intramolecular interactions are broken when a liquid is converted to a gas. Both of these interactions are broken. Chapter 11 Reading Question 12 Part A Choose from the following the best example of an intermolecular force? You did not open hints for this part. ANSWER: https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 2/15 2/18/23, 3:06 AM Review Test 1-Copy Hydrogen bonding Ionic bonding Covalent bonding Metallic bonding Exam Prep Question 11.6 - Enhanced with Feedback Part A Only one of the following substances is a liquid at room temperature; the others are gases. Which substance is most likely to be a liquid at room temperature? ANSWER: hydrogen peroxide, H2 O2 hydrogen sulfide, H2 S hydrogen cyanide, HCN fluoromethane, CH3 F formaldehyde, H2 CO Problem 11.17 - Enhanced - with Feedback Part A https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 3/15 2/18/23, 3:06 AM Review Test 1-Copy Which type of intermolecular attractive force operates in each of the following scenarios? Drag the appropriate items to their respective bins. ANSWER: Reset Help between the hydrogen atom of a polar between polar molecules between all molecules bond and a nearby small electronegative atom London dispersion forces Dipole-dipole forces Ion-dipole forces Hydrogen-bonding forces Chapter 11 Reading Question 16 Part A What property of a liquid is measured by timing how long it takes a certain amount of the liquid to flow through a thin vertical tube? https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 4/15 2/18/23, 3:06 AM Review Test 1-Copy You did not open hints for this part. ANSWER: viscosity surface tension capillary action density Chapter 11 Reading Question 9 Part A The point on a phase diagram that corresponds to a temperature and pressure at which the solid, liquid, and gas phases are all in equilibrium is known as the _______. You did not open hints for this part. ANSWER: normal freezing point. normal boiling point. triple point. critical point. Chapter 13 Reading Question 4 https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 5/15 2/18/23, 3:06 AM Review Test 1-Copy Part A What type of solution has the capacity to dissolve more solute? You did not open hints for this part. ANSWER: supersaturated hydrated saturated unsaturated Self Assessment Exercise 12.1 - Enhanced - with Feedback Part A Which of the following solids are held together by the weakest interactions? ANSWER: metallic solids covalent-network solids ionic solids molecular solids Chapter 12 Reading Question 2 https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 6/15 2/18/23, 3:06 AM Review Test 1-Copy Part A Which of the following is an example of an amorphous solid? You did not open hints for this part. ANSWER: quartz glass sodium chloride diamond Chapter 12 Reading Question 1 Part A What is responsible for holding together metallic solids? You did not open hints for this part. ANSWER: intermolecular forces the mutual electrostatic attraction between cations and anions an extended network of covalent bonds a delocalized "sea" of collectively shared valence electrons https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 7/15 2/18/23, 3:06 AM Review Test 1-Copy Chapter 13 Reading Question 13 Part A Considering factors that affect that solubility which statement below true? You did not open hints for this part. ANSWER: With a few exceptions, the solubility of most solid solutes in water decreases as the solution temperature increases. The solubility of a gas in any solvent is increased as the partial pressure of the gas above the solvent Increases. Substances with similar intermolecular attractive forces tend to be insoluble in one another. The solubility of gases in water increases with increasing temperature. Chapter 13 Reading Question 8 Part A What is the molarity (M) of a solution prepared by dissolving 15.0 grams of Na3PO4 in enough water to make 250.0 mL of solution? You did not open hints for this part. ANSWER: https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 8/15 2/18/23, 3:06 AM Review Test 1-Copy 0.0229 M 0.366 M 0.0915 M 3.66 × 10−4 M Problem 13.43 - Enhanced - with Feedback Calculate the molarity of the following aqueous solutions. Part A 0.550 g of Mg(NO3 )2 in 250.0 mL of solution Express your answer in moles per liter to three significant figures. ANSWER: M (Mg(NO3 )2 ) = M Part B 22.5 g of LiClO4 ⋅ 3H 2 O in 125 mL of solution Express your answer in moles per liter to three significant figures. ANSWER: M (LiClO4 ⋅ 3H 2 O) = M Part C https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 9/15 2/18/23, 3:06 AM Review Test 1-Copy 30.0 mL of 3.60 M HNO3 diluted to 0.250 L. Express your answer in moles per liter to three significant figures. ANSWER: M (HNO3 ) = M Problem 13.44 What is the molarity of each of the following solutions? Part A 35.1 g of Al2 (SO4 )3 in 0.250 L solution. Express your answer in moles per liter to three significant figures. ANSWER: Molarity = M Part B 27.9 g Mn(NO3 )2 ⋅ 2H 2 O in 175 mL of solution. Express your answer in moles per liter to three significant figures. ANSWER: Molarity = M Part C 31.0 mL of 5.01 M H 2 SO4 diluted to 0.500 L. https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 10/15 2/18/23, 3:06 AM Review Test 1-Copy Express your answer in moles per liter to three significant figures. ANSWER: Molarity = M Chapter 13 Reading Question 9 Part A What is the freezing point of a solution that contains 475.0 g of ethylene glycol, CH2(OH)CH2(OH), which is a nonvolatile nonelectrolyte, in 5.00 kg of water? The Kf for water is 1.86 °C/m. You did not open hints for this part. ANSWER: −2.85 °C 2.85 °C −177 °C −71.2 °C Exam Prep Question 13.22 - Enhanced - with Feedback Part A https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 11/15 2/18/23, 3:06 AM Review Test 1-Copy When 90mg of an unknown white powder found at a crime scene is dissolved in 1.56 mL of ethanol (density = 0.789 g/mL, normal freezing point -114.6 ∘ C, C/m ), the freezing point is lowered to -115.6 C. Which of the following substances could be responsible for this freezing-point depression? ∘ ∘ Kf = 1.99 ANSWER: cocaine (C17 H21 NO4 ) fructose (C6 H12 O6 ) codeine (C18 H21 NO3 ) sucrose (C12 H22 O11 ) norfenefrine (C8 H11 NO2 ) Chapter 14 Reading Question 3 Part A For the hypothetical reaction A → B, calculate the average rate of disappearance of A if the initial concentration of A is 0.91 M and the concentration of A after 90 minutes is 0.11 M. You did not open hints for this part. ANSWER: 0.80 M/min 8.9 × 10−3 M/s 8.9 × 10−3 M/min −8.9 × 10−3 M/min https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 12/15 2/18/23, 3:06 AM Review Test 1-Copy Chapter 14 Reading Question 4 Part A For the reaction 2AsH3 (g) → As2 (g) + 3H2 (g), the reaction rate can be given by which of the following? You did not open hints for this part. ANSWER: +3∆[H2]/∆t +∆[As2]/∆t +1/2∆[AsH3]/∆t +1/2∆[As2]/∆t Self Assessment Exercise 14.1 - Enhanced - with Feedback Part A Which of the following statements is/are true? I. As a reaction proceeds the rate is expected to increase. II. Reaction rates generally increase as the temperature is increased. III. The units for reaction rates are typically expressed as moles/s. ANSWER: https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 13/15 2/18/23, 3:06 AM Review Test 1-Copy II and III are true. Only one of the statements is true. I and II are true. All three statements are true. I and III are true. Problem 14.30 - Enhanced - with Feedback Consider the following reaction: 2NO(g) + 2H 2 (g) → N 2 (g) + 2H 2 O(g). Part A The rate law for this reaction is first order in H2 and second order in NO. Choose the rate law. ANSWER: rate = k[H 2 ][NO] 2 rate = k[H 2 ][NO] 2 2 rate = k[H 2 ] [NO] rate = k[H 2 ] Part B Complete previous part(s) Instructors: View all hidden parts https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 14/15 2/18/23, 3:06 AM Review Test 1-Copy Part C Complete previous part(s) Instructors: View all hidden parts Part D Complete previous part(s) Instructors: View all hidden parts Chapter 14 Reading Question 10 Part A What is the molecularity of an elementary step, given its rate law is as follows: Rate = k[A]2[B]? You did not open hints for this part. ANSWER: trimolecular termolecular bimolecular unimolecular Score Summary: Your score on this assignment is 0.0%. You received 0 out of a possible total of 22 points. https://session.masteringchemistry.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=11481819 15/15