Chemistry concepts and calculations

12 December 2017 Student II /No Name lose valence electrons to form positively c

12 December 2017 Student II /No Name lose valence electrons to form positively charged B. metals, cations E. nonmetals, cations 21. In the formation of ions, C. metals, polyatomic…

12 L/min of liquid benzene are to be burned with 40% excess air to produce steam

12 L/min of liquid benzene are to be burned with 40% excess air to produce steam (60 bar and 500 degrees C) from liquid water (60 bar and 20 degrees C. Before entering the combust…

12 Mechanisms in erganic chemistry are exciting and well-studied (sNI, SN2, E1 a

12 Mechanisms in erganic chemistry are exciting and well-studied (sNI, SN2, E1 and E2). We wil rate specifically look at the Elimination reactions (El E2 reactions) and relate the…

12 Name the functional groups in the molecule below: A) ester, ether, amine, ket

12 Name the functional groups in the molecule below: A) ester, ether, amine, keto B) carboxyl, ether, amine, keto C) ester, ether, amine, aldehyde D) ester, ether, amide, aldehyde…

12 Question (12 points) aSee page 236 A 110.2 mL sample of 1.00 M NaOH is mixed

12 Question (12 points) aSee page 236 A 110.2 mL sample of 1.00 M NaOH is mixed with 55.1 mL of 1.00 MH2SO4 in a large Styrofoam coffee cup; the cup is fitted with a lid through w…

12 Question (2 points) See page 462 At high pressures, real gases do not behave

12 Question (2 points) See page 462 At high pressures, real gases do not behave ideally. Calculate the pressure exerted by 330g H2 at 20.0°C in a 1.00L container assuming in Part …

12 Question (3 points) A 94.2 ml sample of 1.00 M NaOH is mixed with 47.1 ml of

12 Question (3 points) A 94.2 ml sample of 1.00 M NaOH is mixed with 47.1 ml of 1.00MH,SO, in a large Styrofoam coffee cup; the cup is fitted with a lid through which passes a cal…

12 THE GENERAL GAS LAW To measure the volume temperature and pressure o test the

12 THE GENERAL GAS LAW To measure the volume temperature and pressure o test the general DORIGINAL Goggles must be worn for the entire lab period. take har there is the danger of …

12 Theoretical Yield (g) of Ca based on Klon used 13 Limiting Reagent 14 Reagent

12 Theoretical Yield (g) of Ca based on Klon used 13 Limiting Reagent 14 Reagent in Excess Percent Yield of Ca(los) 16, Mass of excess reactant that reacted 17, Mass of excess rea…

12 ac=DAc also finds its similar counterpart applications in soil mechanics, at

12 ac=DAc also finds its similar counterpart applications in soil mechanics, at consolidation PDE: Cu well. For example, both diffusion coefficient D and Coefficient of Consolidat…

12 pts) 21. Which ion-dipole interaction below results in the smallest (less neg

12 pts) 21. Which ion-dipole interaction below results in the smallest (less negative) hydration energy? water Li water Na water Provide a brief explanation for your answer. [2 pt…

12 pts) 21. Which ion-dipole interaction below results in the smallest (less neg

12 pts) 21. Which ion-dipole interaction below results in the smallest (less negative) hydration energy? water Li water Na water Provide a brief explanation for your answer. [2 pt…

12 which of the following subs ces wil be most selablein ethanol oHoCH20H0? D) h

12 which of the following subs ces wil be most selablein ethanol oHoCH20H0? D) hexane (CH3CH2CH2CH20H2CH3) 13. Which of the following compounds would be most slubleinearbon tetrac…

12) (6 points)(a) A Tanabe-Sugano energy level diagram for a d6 octahedral compl

12) (6 points)(a) A Tanabe-Sugano energy level diagram for a d6 octahedral complex is shown below. Note that the x-axis is actually /B/10 (ie, a value of 3 is actually 30-A/B.) Nu…

12) 12) If G_-1.00 kJ for reaction at 298 K,what is Ecell for this reaction? Ass

12) 12) If G_-1.00 kJ for reaction at 298 K,what is Ecell for this reaction? Assume that it is a redox reaction in which 2 moles of electrons are transferred (n-2)? A. 0.00 V B. 1…

12) A container holds a mixture of H2(g) and Br2(g) at 1000 K. HBr(g) The two ga

12) A container holds a mixture of H2(g) and Br2(g) at 1000 K. HBr(g) The two gases react to form H2(g) + Br(g) -2 HBr(g) The following data are collected in an experiment: Initia…

12) A sample of sandy water from the seashore is best classified asa A) compound

12) A sample of sandy water from the seashore is best classified asa A) compound B) element C) heterogeneous mixture D) (n) 13) The concentration of which component of the atmosph…

12) A typical double bond oi A) is stronger and shorter than a single bond B) co

12) A typical double bond oi A) is stronger and shorter than a single bond B) consists of one ? bond and one ? bond C) imparts rigidity to a molecule D) consists of two shared ele…

12) Assume that x and y are int variables with x = 5, y = 3, and a and d are cha

12) Assume that x and y are int variables with x = 5, y = 3, and a and d are char variables with a = 'a' and d = 'A', and examine the following conditions: Condition 1: (x < y …

12) Calculate the pH of a solution that is made by mixing 0.80 L of 0.30 M formi

12) Calculate the pH of a solution that is made by mixing 0.80 L of 0.30 M formic acid (HCOOH, K 1.77X10') and 0.90 L of 0.20 M sodium formate (NaHCOO). [Hint: don't forget that y…

12) Caleulate the pH of a solution that is made by mixing 0.80 Lof 0.30 M formic

12) Caleulate the pH of a solution that is made by mixing 0.80 Lof 0.30 M formic acid (HCOOH Kp1.77x10s) and0.90 L of 0.20 M sodium formate (NaHCOO). Hint don'tforget that you are…

12) Commercial grade HCI solutions are typically 390% (by mass) HCl in water. De

12) Commercial grade HCI solutions are typically 390% (by mass) HCl in water. Determine the molarity of the HCL, if the solution has a density of 1.20g/m A)935 M B)7.9M139 M D) 10…

12) Determine the Ksp for CaF2, if the molar solubility is 3.32x10-4 M 12) Deter

12) Determine the Ksp for CaF2, if the molar solubility is 3.32x10-4 M 12) Determine the solubility product constant x 10 M. Show your work! (KRB) for calcium fluoride, if the mol…

12) How many milliliters (mL) of a 3.00 M solution of sodium chlorate must be ad

12) How many milliliters (mL) of a 3.00 M solution of sodium chlorate must be added to 275.0 milliliters (mL) of water to achieve a 0.575 M sodium chlorate solution? (3) Use dimen…

12) How many milliliters (mL) of a 3.00 M solution of sodium chlorate must be ad

12) How many milliliters (mL) of a 3.00 M solution of sodium chlorate must be added to 275.0 milliliters (mL) of water to achieve a 0.575 M sodium chlorate solution? (3) Use dimen…

12) How many moles of FeO are needed to produce 0.400 mol of Fe,0, in the follow

12) How many moles of FeO are needed to produce 0.400 mol of Fe,0, in the following reaction? 4 FeO(s)+02(g)-2Fe3O3(s) B. 0.400 mol A. 0.200 mol C. 0.800 mol D.1.000 mol E. 1.600 …

12) If a gas effuses 1.618 times faster than Kr (molar mass = 83.8 g/mol) what i

12) If a gas effuses 1.618 times faster than Kr (molar mass = 83.8 g/mol) what is the molar mass of the gas? (4 pts.) 13) For the following redox reaction, identify the oxidizing …

12) The density of copper metal is 8.96 g/cm2. What would be the volume of 12.2

12) The density of copper metal is 8.96 g/cm2. What would be the volume of 12.2 kg of copper? 13. Convert 0.0045 m to um. 14. Convert 89.04 nL to L. 15. Convert 3.010x10* cg to g.…

12) The units of discharge are: A. m 3 /s B. ft 3 /s C. m 2 /yr D. ft 2 /s E. No

12) The units of discharge are: A. m3/s B. ft3/s C. m2/yr D. ft2/s E. None of the above 13) Glaciers and straight streams have the same velocity profiles, where the velocity is: A…

12) What is the hybridization of the I atom in a IFs molecule? C) sp3d A) sp2 B)

12) What is the hybridization of the I atom in a IFs molecule? C) sp3d A) sp2 B) sp2d2 E) sp3 13) An endothermic reaction is a process that A) has a negative Hsys and a positive A…

12) What principle states that equal volumes of gases, at the same temperature a

12) What principle states that equal volumes of gases, at the same temperature and pressure, 12) contain equal numbers of molecules? A) law of conservation of mass B) law of const…

12) When diluting an acid, always add a) base to acid b) acid to base c) water t

12) When diluting an acid, always add a) base to acid b) acid to base c) water to acid d) acid to water e) diluted acid to concentrated acid 13) The limiting reactant in a reactio…

12) Which of the following islare eptically lnactive chiral compound enantiomers

12) Which of the following islare eptically lnactive chiral compound enantiomers E3) 3dentify the Solewing compounds as or 14) What is the relationship between the following compo…

12) Which of the following islare eptically lnactive chiral compound enantiomers

12) Which of the following islare eptically lnactive chiral compound enantiomers E3) 3dentify the Solewing compounds as or 14) What is the relationship between the following compo…

12) Whichs Fe2S3 + 12h INO3 2FeN 013 + 35 . 6NO2 . 61120 A) Fe B)S C)N D) O E)H

12) Whichs Fe2S3 + 12h INO3 2FeN 013 + 35 . 6NO2 . 61120 A) Fe B)S C)N D) O E)H 13) Which transformation could take place at the anode of an electrochemical cell? B) F2 to F C)02 …

12) You are asked to prepare125.0 mL of 0.0321 M AgNO3. How many grams would you

12) You are asked to prepare125.0 mL of 0.0321 M AgNO3. How many grams would you need of a 14) Blood cholesterol levelsare generally expressed as milligrams of cholesterol per dec…

12) a. Calculate the mass defect in Fe-56 if the mass of an Fe-56 nucleus is 55.

12) a. Calculate the mass defect in Fe-56 if the mass of an Fe-56 nucleus is 55.921 amu.  The mass of a proton is 1.00728 amu and the mass of a neutron is 1.008665 amu. Show work …

12) based on the appropriate wavelength of light absorbed by the following mater

12) based on the appropriate wavelength of light absorbed by the following material which has smallest band gap? 13) iron crystallizes in a body centered cubic pattern. how many i…

12)What is the product of the beta minus decay of 90Sr? a. 91Sr b. 86Kr C. 90Y d

12)What is the product of the beta minus decay of 90Sr? a. 91Sr b. 86Kr C. 90Y d. 90Rb e. 89Sr For ques tion 13, consider the section of the Chart of the Nuclides shown below: 9F …

12, -8 points YF14 26.P.041. My Notes Ask Your A 4.55HF capaator that is initial

12, -8 points YF14 26.P.041. My Notes Ask Your A 4.55HF capaator that is initially uncharged is connected in series with a 7.70-k12 resistor and an emf source with -105 v and negl…

12, 7. In a study of the decomposition of nitrous oxide at 565 oC N20 (g) N2 (g)

12, 7. In a study of the decomposition of nitrous oxide at 565 oC N20 (g) N2 (g) O2 (g) the following data were obtained: N20], M 1.11 0.278 0.555 2.22 478 seconds 1.44x105 3.34x1…

12, Describe the simplest heat treatment procedure that would be used in convert

12, Describe the simplest heat treatment procedure that would be used in converting a 0.76 wt%C steel from martensite to spheroidite. A. Rapidly cool to 600°C (1110°F), hold at th…

12, what is nonionizing radiation? (Outcome # 3) (DOK 1) radiation that does not

12, what is nonionizing radiation? (Outcome # 3) (DOK 1) radiation that does not have a sufficient amount of energy to remove an electron from an atom or molecule radiation that h…

12,13 please explain answer 12. If an object is to be plated with a metal in an

12,13 please explain answer 12. If an object is to be plated with a metal in an electrolytic cell, the object should be A. made of the metal with which it is to be plated C. used …

12-16 PROBLEMS 1. Calculate the entropy change at 25 °C and one bar pressure for

12-16 PROBLEMS 1. Calculate the entropy change at 25 °C and one bar pressure for the reaction THERMODYNAMICS (VII) aas-15 K using the following data at one bar pressure: Ahyus (kJ…

12-4 to find the solubility (mol/L) of R3NH Br in a solution maintained at pH 9.

12-4 to find the solubility (mol/L) of R3NH Br in a solution maintained at pH 9.50. Use the equilibria Ksp = 4.0 × 10-8 Ka 2.3 x 10-9 12-33. At neutral pH, CaSO,(s) dissolves in w…

12-A mixture contained zinc sulfide, ZnS, and lead sulfide, PbS. Asample of the

12-A mixture contained zinc sulfide, ZnS, and lead sulfide, PbS. Asample of the mixture weighing 6.12 g was reacted with an excess ofhydrochloric acid. The reactions are given bel…

12-Which of these statements are FALSE with respect to the function of glycogen?

12-Which of these statements are FALSE with respect to the function of glycogen? a) Glycogen is the "pool" of glucose used to regulate the blood glucose concentrations. b) Glycoge…

12. (20 pts.) A sensitive assay for ATP is based on its participation in the lig

12. (20 pts.) A sensitive assay for ATP is based on its participation in the light-producing reaction of the firefly. The reaction catalyzed by the enzyme luciferase is as follows…

12. (5 pts) An aqueous Caci2 (FM 110.98 g/mol)solution has a vapor pressure of 8

12. (5 pts) An aqueous Caci2 (FM 110.98 g/mol)solution has a vapor pressure of 81.6 mmHg at 50.0 oC. The vapor pressure of pure water (FM 18.02 g/mol at this temperature is 92.6 m…