Chemistry concepts and calculations

30) Thermodynamics describes? Whether or not something can happen (is favorable)

30) Thermodynamics describes? Whether or not something can happen (is favorable) How fast something happens The mechanism by which something happens How thermodynes work. . 31) Th…

30) Which of the following is true about ideal gasses? a. only homoatomic diatom

30) Which of the following is true about ideal gasses? a. only homoatomic diatomic gasses can be considered ideal gasses b. most gasses can be treated as ideal gasses at average t…

30) a)how much heat is released(in kJ) when 100.0 g H2O(l) is formed from the co

30) a)how much heat is released(in kJ) when 100.0 g H2O(l) is formed from the combustion of H2(g) and O2(g) 2H2(g) + 2O2(g) 2H2O(l) H°=-571.6 kJ. b) in an exothermic reaction? a) …

30. (10 points) Magnesium nitride forms when magnesium reacts with nitrogen gas.

30. (10 points) Magnesium nitride forms when magnesium reacts with nitrogen gas. If 18.4 go magnesium nitride forms from the reaction of 20.0 g of magnesium and 10.0 g of nitrogen…

30. A compound with IR bands at 3025 (m), 2915 (s), 2830 (m). 2705 (m), 1725 (s)

30. A compound with IR bands at 3025 (m), 2915 (s), 2830 (m). 2705 (m), 1725 (s), 1645 (w) cm,; and has 7 peaks in the 13C NMR including peaks at 124, 129 and 205 ppm. DEPT 90: 12…

30. A hydrogen bond is usually depicted by a dashed or dotted line. Circle the p

30. A hydrogen bond is usually depicted by a dashed or dotted line. Circle the picture that correctly represents an H-bonding interaction. HuH Hu HH-C-H H-CHH HC-HH c-H H-f-H orH …

30. A hydrogen bond is usually depicted by a dashed or dotted line. Circle the p

30. A hydrogen bond is usually depicted by a dashed or dotted line. Circle the picture that correctly represents an H-bonding interaction. HuH Hu HH-C-H H-CHH HC-HH c-H H-f-H orH …

30. A positive standard reduction potential versus the standard hydrogen electro

30. A positive standard reduction potential versus the standard hydrogen electrode (SH a. A greater tendency of the half-reaction towards reduction in water b. A greater tendency …

30. A possible mechanism for the reaction 2H2 + 2NO -> N2 + 2H2O is: Step 1: H2

30. A possible mechanism for the reaction 2H2 + 2NO -> N2 + 2H2O is: Step 1: H2 + 2NO -> N2O + H2O     (slow) Step 2: N2O + H2 -> N2 + H2O       (fast) Based on the mecha…

30. A solution is unsaturated i A. The solid is polar and the liquid is not B. T

30. A solution is unsaturated i A. The solid is polar and the liquid is not B. The solid and liquid are polar C. The solid and liquid are non polar D. More solute can be dissolved…

30. Check the alternative that is NOT correct: (Justify the correct and wrong an

30. Check the alternative that is NOT correct: (Justify the correct and wrong answers). A) The energy required to form an ionic bond is provided, for the most part, by the coulomb…

30. Part A The value of H° for the reaction below is -482 kJ. Calculate the heat

30. Part A The value of H° for the reaction below is -482 kJ. Calculate the heat (kJ) released to the surroundings when 14.0 g of CO (g) reacts completely. 2CO (g) + O2 (g) 2CO2 (…

30. The iodide ion, I, is oxidized to the hypoiodite ion, IO, by hypochlorite, C

30. The iodide ion, I, is oxidized to the hypoiodite ion, IO, by hypochlorite, CIO, in basic solution according to the equation above. Three initial-rate experiments were conducte…

30. The iodide ion, I, is oxidized to the hypoiodite ion, IO, by hypochlorite, C

30. The iodide ion, I, is oxidized to the hypoiodite ion, IO, by hypochlorite, CIO, in basic solution according to the equation above. Three initial-rate experiments were conducte…

30. The natural abundance of 35CI is 75.77%. These means that in 100 g of Cl the

30. The natural abundance of 35CI is 75.77%. These means that in 100 g of Cl there are 75.77 g of 35CI. A. one B. two D. nine C. three E. infinite 29. An unknown carbon, hydrogen,…

30. Which of the following is the smallest amount of CO (gas)? (A) 100 amu (B) 2

30. Which of the following is the smallest amount of CO (gas)? (A) 100 amu (B) 22 grams (C) 11.2 liters (D) One mole 31. Which of the following samples has the greatest number of …

30. Which of the following monosaccharide(s) are produced when starch is complet

30. Which of the following monosaccharide(s) are produced when starch is completely hydrolyzed? b) -D-glucopyranose c) -D-glucose d) -D-galactose e) -D-fructofuranose f) maltose 3…

30. Which of the following statements is /are true? A. The following reaction is

30. Which of the following statements is /are true? A. The following reaction is identified as exothermic and the entropy is decreasing with reaction CH4 (g) + 2O2 (g) = CO2 (g) +…

30. Which two species are isoelectronic? c) Ca* and Mg2* a) Na* and K d) Al+ and

30. Which two species are isoelectronic? c) Ca* and Mg2* a) Na* and K d) Al+ and Ne b) Cl and F e) P and Ca 31. How many electrons does a stable barium ion have? a) 2 c) 54 d) 56 …

30. compound is found to be 30.45% N and 69,55 1,63 gof this compound occupy A 3

30. compound is found to be 30.45% N and 69,55 1,63 gof this compound occupy A 389 candms mm Hg, what is the molecular formula of the compound? NO2 B) N20 4.1, mol b C) N402 D) N2…

30.0 g of P4010 is mixed with 75.0 g of water to form phosphoric acid: P4O10 (s)

30.0 g of P4010 is mixed with 75.0 g of water to form phosphoric acid: P4O10 (s)+ 6H2O (l) -----> 4 H3PO4 (aq) A.) which one is the limiting reactant? b.) how many grams of pho…

30.0 g of P_4O_14 is mixed with 75.0 g of water to form phosphoric acid: P_4O_10

30.0 g of P_4O_14 is mixed with 75.0 g of water to form phosphoric acid: P_4O_10 (s) + H_2 O (l) H_3 PO_4 (aq) a. Balance the equation. b. What is the limiting reactant? Show calc…

30.0 mL of 0.10M HCI is mixed with 25ml, of 0.10M NaOH. What is the pH of the mi

30.0 mL of 0.10M HCI is mixed with 25ml, of 0.10M NaOH. What is the pH of the mixture? 12.0 2.0 2.3 11.7 13 A 0.20 M solution of a weak acid has a pH of 2. What is the % dissociat…

30.28 Manganese has one stable isotope, 55Mn. What are the likely decay modes an

30.28 Manganese has one stable isotope, 55Mn. What are the likely decay modes and daughter nuclei for 51Mn? A)We expect the 51Mn to decay by beta-minus. The daughter nucleus is 51…

30/2017 11:00 PM 7/1011/30/2017 05:17 PM Pnnt Calculator-Penodic Table ncorrect

30/2017 11:00 PM 7/1011/30/2017 05:17 PM Pnnt Calculator-Penodic Table ncorrect IncorrectI Incorrect IncorrectIncorrect Incorrect Incorrect on 2 of 10 Sapling Learning Balance the…

300 mL of a 0.694 M HCl aqueous solution is mixed with 300 mL of 0.347 M Ba(OH)2

300 mL of a 0.694 M HCl aqueous solution is mixed with 300 mL of 0.347 M Ba(OH)2 aqueous solution in a coffee-cup calorimeter. Both the solutions have an initial temperature of 28…

3000 points!! Hello, I am having trouble recognizing what type of mechanism will

3000 points!! Hello, I am having trouble recognizing what type of mechanism will take place, SN1, SN2, E1, or E2. Im mostly having trouble with whether the reactant is a nucleophi…

301 Name. Date Lab Section, Postlaboratory Problems-Experiment 24- Solubility Pr

301 Name. Date Lab Section, Postlaboratory Problems-Experiment 24- Solubility Product 1. What are some of the errors involved in the total volume measurements in Part A? 2. In our…

30444 a.- 101lo40 2.) A coffee cup calorimeter contains 480.0 grams of water at

30444 a.- 101lo40 2.) A coffee cup calorimeter contains 480.0 grams of water at 25.00 °C. To it are added: 380.0 grams of water at 53.5 °O 525.0 grams of water at 65.5 °C Assuming…

305 Critical Thinking Problem Set-Chapter 10 cabel the Bronsted-Lowry acids and

305 Critical Thinking Problem Set-Chapter 10 cabel the Bronsted-Lowry acids and bases in the following equations, and tell which substances are conjugate acid-base pairs. 6) An aq…

306 grams of an unknown is composed of two substances in unknown quantities: Mg

306 grams of an unknown is composed of two substances in unknown quantities: Mg sO4 x 7D2O and CaCo3. Use 153 grams in this reaction: MgSo4 x 7D2O yields MgSo4 x 4D2O plus 3D2O. T…

306 grams of an unknown is composed of two substances in unknown quantities: MgS

306 grams of an unknown is composed of two substances in unknown quantities: MgSO4x7D2O and CaCO3. Use 153 grams in this reaction MgSO4 x 7D2O yield Mg SO4 x 4D2O plus 3D2O crucib…

3089.4 Sp2 C-H stretch 2964.93 Sp3 C-H stretch 1720.23 C=O stretch, conjugated e

3089.4 Sp2 C-H stretch 2964.93 Sp3 C-H stretch 1720.23 C=O stretch, conjugated ester 1615.41 C=C stretch, aromatic 1530.25 N=O asymmetric stretch?? 1445.09 C=C stretch, aromatic 1…

30W Wed 2:25 AM fari Fie Edit Mew History Bookmarks Makeup Lab Volumetric Analys

30W Wed 2:25 AM fari Fie Edit Mew History Bookmarks Makeup Lab Volumetric Analysis 1: Preparing a Standard solution of Sodium Carbonate and Volumetric Analysis 2: Standardization …

31 , For the reaction of hydrogen and nitrogen gases at 30°C to form two moles o

31 , For the reaction of hydrogen and nitrogen gases at 30°C to form two moles of ammonia gas (NII), the value ofK, is 4.5 × 10-12. What is the value of Ke for the same reaction? …

31 30 Notice the level and steep areas of the phosphate and carbonae curves on F

31 30 Notice the level and steep areas of the phosphate and carbonae curves on Figure 2-4 ansd State the definition of a buller. ^ think about which areas on the figure are acting…

31 30 Notice the level and steep areas of the phosphate and carbonae curves on F

31 30 Notice the level and steep areas of the phosphate and carbonae curves on Figure 2-4 ansd State the definition of a buller. ^ think about which areas on the figure are acting…

31 TAOLE 26 some weak acids and their conjugate bases Acid (Proton Donor) Conjug

31 TAOLE 26 some weak acids and their conjugate bases Acid (Proton Donor) Conjugate Base (Proton Acceptor) 1.78 x 10 4,76 1.74 x 10 3.86 1.38 x 10 2.14 7.24 x 10 a Dihydrogen phos…

31 To what main class of enzymes does the enzyme that catalyzes this reaction be

31 To what main class of enzymes does the enzyme that catalyzes this reaction belon A) lyase B) oxidoreductase C) hydrolase D) isomerase E) ligase Use the following to answer ques…

31 and 32 please. I keep trying to figure it out but I just can\'t get it. treat

31 and 32 please. I keep trying to figure it out but I just can't get it. treated by injection of a calcium chloride solution lz solution is administered 26 Cardiac arrest victims…

31% ooooo Sprint 11:17 AM assistive-technology sbsd.schoolfusion.us Interpreting

31% ooooo Sprint 11:17 AM assistive-technology sbsd.schoolfusion.us Interpreting Tables Use the table to answer questions 8 through 10. Characteristics of Elements Element Block C…

31% rks Window Help saplinglearning.com ource Backboard Learn UConect Tamiu emal

31% rks Window Help saplinglearning.com ource Backboard Learn UConect Tamiu emal Dianey ESPN Vehoo Facebook TwiterPopuler Clout Aqpie Texas A&M; International CHEM 1311-Fal17 …

31) Cu+2 is reduced in Benedicts reagent . Explanation : Benedict\'s reagents is

31) Cu+2 is reduced in Benedicts reagent . Explanation : Benedict's reagents is a reagent used as a test for reducing sugars including glucose , lactose and fructose. Benedict's c…

31) For which of the following is pOH-12.002 A. 0.010 M HCI B. 2.0 MHCI C. 0.010

31) For which of the following is pOH-12.002 A. 0.010 M HCI B. 2.0 MHCI C. 0.010 M NaOH D. 2.0 MNaOH 32) The activation energy of a reaction: A. increases with temperature. B. inc…

31) In electrophilic aromatic substitution reactions a bromine substituent: A) i

31) In electrophilic aromatic substitution reactions a bromine substituent: A) is a deactivator and a m-director. B) is a deactivator and an o.p-director. C) is an activator and a…

31) To extend a length of 1.00 inches, 2.54 x 10 8 average sized atoms would hav

31) To extend a length of 1.00 inches, 2.54 x 10 8 average sized atoms would have to be placed in a straight line (in other words, 2.54 x 10 8 atoms per 1.00 inches). How many ave…

31) To extend a length of 1.00 inches, 2.54 x 10 8 average sized atoms would hav

31) To extend a length of 1.00 inches, 2.54 x 10 8 average sized atoms would have to be placed in a straight line (in other words, 2.54 x 10 8 atoms per 1.00 inches). How many ave…

31). Which element is most likely to form three covalent bonds? B) Si C) P D) S

31). Which element is most likely to form three covalent bonds? B) Si C) P D) S E) Se 32). Which statement regarding balanced chemical equations is not true? A) The number of each…

31. A 0.4584 g sample of a pure soluble bromide compound is dissolved in water,

31. A 0.4584 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide ion is precipitated as AgBr by the addition of an excess of silver nitrate. …

31. A fully equipped astronaut has a mass of 150 kg. If the astronaut has a weig

31. A fully equipped astronaut has a mass of 150 kg. If the astronaut has a weight of 700 N standin on the surface of a planet, what is the acceleration due to gravity on this pla…