Chemistry concepts and calculations

28) Which factors would decrease the rate of a reaction? I. Lowering the tempera

28) Which factors would decrease the rate of a reaction? I. Lowering the temperature II. Increasing the concentration of reactants II. Adding a catalyst A) I only E) I and III C) …

28) catalytic hydration of an alkene 29) The reaction of an alkene with a borane

28) catalytic hydration of an alkene 29) The reaction of an alkene with a borane (BH3) followed by oxidation 30) What is the major product of the reaction shown? 28. Catalytic hyd…

28-9 g of iron shot is added to a graduated cylinder containing 45 - 5 ml. of wa

28-9 g of iron shot is added to a graduated cylinder containing 45 - 5 ml. of water. The water level rises to the 49 -1 ml. mark, from this information, calculate the density of i…

28. A solution is prepared by adding 100 mL of 1.5 MHC2H O2a) to 100 mL of 1.5 M

28. A solution is prepared by adding 100 mL of 1.5 MHC2H O2a) to 100 mL of 1.5 MNaCH,O.(aq). The solution is stirred and its pH is measured to be 4.8. After 0.1 g NaOH(s) is added…

28. Calculate the cell voltage for the following reaction: Cu\'. (0.010 M ) + H2

28. Calculate the cell voltage for the following reaction: Cu'. (0.010 M ) + H2(l atm) Cu(s) + 2H'( pH = 7.0) A) 0.19Vv B) -0.01 V C) 0.34 v D) 0.69Vv E) 0.49 V 16 29. Which one o…

28. Consider the phase diagram shown. Choose the statement below that is FALSE.

28. Consider the phase diagram shown. Choose the statement below that is FALSE. atm LIQUID 9 2 5.1 SOLID atm GAS atm 78.5 °C-56.7 °C Temperature (not to scale) 31°? A) The triple …

28. Determine the theoretical yield of HCl if 30.0 g of BCl3 and 32.5 g of H2O a

28. Determine the theoretical yield of HCl if 30.0 g of BCl3 and 32.5 g of H2O are reacted according to the following balanced reaction. A possibly useful molar mass is BCl3 = 117…

28. In the oxidative deamination reaction, which molecules are formed? CIRCLE AL

28. In the oxidative deamination reaction, which molecules are formed? CIRCLE ALL THAT APPLY a. NH4 b. CO c. O2 d. a- Ketoglutarate 29. In reference to steps 2-4 of the urea cycle…

28. Part A Assuming constant pressure, rank these reactions from most energy rel

28. Part A Assuming constant pressure, rank these reactions from most energy released by the system to most energy absorbed by the system, based on the following descriptions: Sur…

28. The thermochemical equation which is associated with AH, , the standard enth

28. The thermochemical equation which is associated with AH, , the standard enthalpy of formation for HClg), is a. H(g) + Cl(g) HCl(g) b. Hdg) + Cl2(g) 2HCl(g) c. ½ H2(g) + ½ Cl2(…

28. The van der Waals equation of state for a real gas is = nRT In this equation

28. The van der Waals equation of state for a real gas is = nRT In this equation, the van der Waals constant, a, represents a correction for a. a deviation in the measured value o…

28. These two polymers are (A) tautomers. (B) constitutional isomers. (C) diaste

28. These two polymers are (A) tautomers. (B) constitutional isomers. (C) diastereomers. (D) structural isomers. 29. The rate law for this reaction is: Rate=k[R-ClICH,01 Na CH30, …

28. What is the hydronium ion concentration of a 0.010 M solution of acetic acid

28. What is the hydronium ion concentration of a 0.010 M solution of acetic acid? K, for acctic acid i 1.8 × 10-5 a. 1.8 x 103 b. 1.8 x 10 c. 1.0 x 102 d. 1.8 x 10-7 e. 4.2 x 104 …

28. Which commonly used structural metal has the lowest density? a. aluminum b.

28. Which commonly used structural metal has the lowest density? a. aluminum b. zinc e. magnesium d. titanium 29. Calcium oxide from oyster shells is used to precipitate magnesium…

28. Which compound is soluble in water? A) CH(CH2 CHO B) CH(CH24COCH-CH C) CH CH

28. Which compound is soluble in water? A) CH(CH2 CHO B) CH(CH24COCH-CH C) CH CH CHO D) All of the compounds above are soluble in water 29. What is the name of the compound shown …

28. Which of the following is NOT considered a ketone body? a. acetone b. butyry

28. Which of the following is NOT considered a ketone body? a. acetone b. butyryl CoA c. acetoacetate d. ?-hydroxybutyrate 29. The synthesis of fatty acids a. takes place by simpl…

28. t 3.61 points Ch. Ex. 137b- of Formation of Ca(OH)2 1 out of 3 attempts Lime

28. t 3.61 points Ch. Ex. 137b- of Formation of Ca(OH)2 1 out of 3 attempts Lime is a term that includes calciam oxide (CaO, also called quicklime) and calcimm kydroside Assistanc…

28.)Compound A is a solid with a melting point of 85degreesC, and compound B is

28.)Compound A is a solid with a melting point of 85degreesC, and compound B is a gas at 75degrees C and one atmosphere pressure. based on these data,one would expect 29.) which o…

28.1An 18 HF capacitor has been charged to 100 V. A 15 kn resistor and a 5 k2 re

28.1An 18 HF capacitor has been charged to 100 V. A 15 kn resistor and a 5 k2 resistor, are connected in series with the capacitor. (a) What is the time constant of this circuit? …

28.Consider a reaction for which ?H =-30.91 kJ/mol, ?S =-93.2J/K-mol. Which of t

28.Consider a reaction for which ?H =-30.91 kJ/mol, ?S =-93.2J/K-mol. Which of the following statements is true? A)The reaction is spontaneous at all temperatures B)The reaction i…

286.9 J/kg/K is the ideal gas law constant for air, the molecular of air is 29 T

286.9 J/kg/K is the ideal gas law constant for air, the molecular of air is 29 The specific heat of water is 4.19 kJ/kg/K. Find the boiling point of water at 5,000 meters elevatio…

28S Post-Laboratory Questions use the spaces procided for the ansovers and addit

28S Post-Laboratory Questions use the spaces procided for the ansovers and additional paper if necessary 1. Obtain from your classmates or from your laboratory instructor instruct…

29 ) Consider the reaction: ___H 2 O 2(aq) ___H 2 O (l) + ___O 2(g) Balance the

29 ) Consider the reaction: ___H2O2(aq) ___H2O(l) + ___O2(g) Balance the chemical equation. Enter coefficient values from left to right separated by commas. For example: 1,2,3 - …

29 11. (15 points) Cr(OH)3 (s) has a Ksp of 3.0x 10 A. Write a reaction represen

29 11. (15 points) Cr(OH)3 (s) has a Ksp of 3.0x 10 A. Write a reaction representing the dissolution of Cr(OH)3 (). B. Write the Ksp equilibrium constant expression. C. Will a sat…

29 :er CHEMICAL DIGESTION-LAB NOTES Part 4: Proteins MATERIALS: 1 petri dish, pr

29 :er CHEMICAL DIGESTION-LAB NOTES Part 4: Proteins MATERIALS: 1 petri dish, prepared with agar Pepsin solution Use a probe to mash up ½ of the agar in the plate, leaving the oth…

29 A positive Benedict\'s test is indicated by the formation ot which of the fol

29 A positive Benedict's test is indicated by the formation ot which of the following? d. metallic mirror a CuO b. Cu 30. 5-decanone would be a water soluble compound. A-True. B-F…

29 Consider the ions indicated by I- IV and decide which of the possible electro

29 Consider the ions indicated by I- IV and decide which of the possible electron configurations indicated by choices a -1 correctly describes the proper electron configuration. S…

29 Na te Lab Section Prelaboratory Problems- Experiment 3 - Acids and Bases: Ana

29 Na te Lab Section Prelaboratory Problems- Experiment 3 - Acids and Bases: Analysis 1.° The titration of 25.00 mL of a sulfuric acid solution of unknown concentration requires 3…