Chemistry concepts and calculations

What is the order in which the following compounds would be eluted from a HPLC c

What is the order in which the following compounds would be eluted from a HPLC column containing a normal-phase packing? Briefly justify your reasoning. phenol, benzoic acid, anil…

What is the order of decreasing reactivity towards nucleophilic acyl substitutio

What is the order of decreasing reactivity towards nucleophilic acyl substitution for the carboxylic acid derivatives? (most reactive first). a. I, II, III, IV b. II, III, I, IV c…

What is the order of the rate of production of the bacteria? How many bacteria w

What is the order of the rate of production of the bacteria? How many bacteria will be present after 126 min? What is the rate constant for the process? stion 33 of 33 Map Univers…

What is the order of the reaction for the following reaction and for each reagen

What is the order of the reaction for the following reaction and for each reagent given? 2. Determine the rate of the chemical reaction shown directly below, given an NO concentra…

What is the order of the reaction for the following reaction and for each reagen

What is the order of the reaction for the following reaction and for each reagent given? 2. Determine the rate of the chemical reaction shown directly below, given an NO concentra…

What is the order with respect to each reactant? 1 ---Select---Zero orderHalf or

What is the order with respect to each reactant? 1---Select---Zero orderHalf orderFirst orderSecond orderThird order with respect to [A]. 2---Select---Zero orderHalf orderFirst or…

What is the organic acid present in vinegar? (write in letter of correct answer)

What is the organic acid present in vinegar? (write in letter of correct answer) formic acid acetic acid benoic acid hydrochloric acid sulfuric acid What kind of reaction is indic…

What is the origin of the regioselectivity in the hydroboration reaction? (A) Re

What is the origin of the regioselectivity in the hydroboration reaction? (A) Rearrangement of a carbocation intermediate; (B) steric reasons: the less substituted carbon is less …

What is the osmolarity of each of the following solutions? 1.0 M KNO_3 1.0 M K_2

What is the osmolarity of each of the following solutions? 1.0 M KNO_3 1.0 M K_2 SO_4 1.0 M in both KNO_3 and Na_2 SO_4 1.0 M in both KNO_3 and glucose Classify each of the follow…

What is the osmolarity of each of the following solutions? 1.0 M KNO_3 1.0 MK_2S

What is the osmolarity of each of the following solutions? 1.0 M KNO_3 1.0 MK_2SO_4 1.0 M in both KNO_3 and Na_2SO_4 1.0 M in both KNO_3 and glucose Classify each of the following…

What is the osmolarity of the dialysate fluid? HCO3- 35.0 mEq/L K+ 2.0 mEq/L Na+

What is the osmolarity of the dialysate fluid? HCO3- 35.0 mEq/L K+ 2.0 mEq/L Na+ 130.0 mEq/L Ca2+ 6.0 mEq/L Mg2+ 3.0 mEq/L Cl- 106.0 mEq/L Glucose 5.0% (m/v) I have sent this ques…

What is the osmotic pressure of a 5% sucrose (C12H22O11) solution at 10 degrees

What is the osmotic pressure of a 5% sucrose (C12H22O11) solution at 10 degrees Celsius? The density of the solution is 1.035g/mL. To what height could water be pushed up by this …

What is the osmotic pressure, in atm, of a 0.0020M sucrose solution at 20.0°C? E

What is the osmotic pressure, in atm, of a 0.0020M sucrose solution at 20.0°C? Ethylene glycol (EG), CH2(OH)CH2(OH), is a common automobile antifreeze. Calculate the freezing poin…

What is the output of the following segment of code? ArrayUnbndQueue q1

What is the output of the following segment of code? ArrayUnbndQueue<Integer> q1 = new ArrayUnbndQueue<Integer>(); ArrayUnbndQueue<Integer> q2 = new ArrayUnbndQu…

What is the overall balanced reaction for Cl2 ---> 2Cl Fast Step. Solution The f

What is the overall balanced reaction for Cl2 ---> 2Cl Fast Step.

What is the overall balanced reaction for Cl2 ---> 2Cl Fast Step. Solution The f

What is the overall balanced reaction for Cl2 ---> 2Cl Fast Step.

What is the overall charge in each of the following regions of the figure? How d

What is the overall charge in each of the following regions of the figure? How does the charge measured by your device change if the probe a moved from point A to point B in the f…

What is the overall order of the following reaction, given the rate law? 2 NO(g)

What is the overall order of the following reaction, given the rate law? 2 NO(g) + H_2(g) rightarrow N_2(g) + 2 H_2O (g) Rate = k[NO]^2[H_2] A. zeroth order B. first order C. seco…

What is the overall order of the following reaction, given the rate law? NO(g) +

What is the overall order of the following reaction, given the rate law? NO(g) + O_3(g) rightarrow NO_2(g) + O_2(g) Rate = k[NO][O_3] A) 1st order B) 2nd order C) 3rd order D) 1 1…

What is the overall order of the reaction? By what factor does the reaction rate

What is the overall order of the reaction? By what factor does the reaction rate change if [A] is doubled (and the other reactant concentrations are held constant)? By what factor…

What is the overall reaction order of the following elementary reaction? 2 Cl (g

What is the overall reaction order of the following elementary reaction? 2 Cl (g) + Ar(g) rightarrow Cl_2 (g) + Ar(g) (a) unimolecular (b) bimolecular (c) termolecular (d) You can…

What is the overall standard free-energy change for the following two reactions?

What is the overall standard free-energy change for the following two reactions? A+B rightarrow 2C delta G0=delta G1 C+D rightarrow E delta G0= delta G2 If at a certain instant du…

What is the overall standard free-energy change for the following two reactions?

What is the overall standard free-energy change for the following two reactions? A+B rightarrow 2C delta G0=delta G1 C+D rightarrow E delta G0= delta G2 If at a certain instant du…

What is the oxidation number and the coordination number of the metal? Oxidation

What is the oxidation number and the coordination number of the metal? Oxidation Number Coordination Number [Cu(NH_3)_4]SO_4 middot H_2O_____________[Co(NH_3)_5H_2O]Cl_3__________…

What is the oxidation number of Cl in Cl2? (include sign) What is the oxidation

What is the oxidation number of Cl in Cl2? (include sign) What is the oxidation number of Mn in Mn2+? (include sign) What is the oxidation number of C in CH4? (include sign) Which…

What is the oxidation number of Cr in H2Cr2O7? +12 +6 +4 +2 What is the coeffici

What is the oxidation number of Cr in H2Cr2O7? +12 +6 +4 +2 What is the coefficient of I2 when this redox reaction is balanced in acidic solution? ClO3- + I- rightarrow I2 + Cl- 1…

What is the oxidation number of Cr in H2Cr2O7? +12 +6 +4 +2 What is the coeffici

What is the oxidation number of Cr in H2Cr2O7? +12 +6 +4 +2 What is the coefficient of I2 when this redox reaction is balanced in acidic solution? ClO3- + I- rightarrow I2 + Cl- 1…

What is the oxidation number of chromium in the ionic compound ammonium dichroma

What is the oxidation number of chromium in the ionic compound ammonium dichromate, (NH_4)_2 CR_2 O_2? A) +3 B) +6 C) +4 D) +5 E) +7 The following reaction occurs in basic solutio…

What is the oxidation number of iodine in lo_3? -1 0 +3 +5 +7 What is the electr

What is the oxidation number of iodine in lo_3? -1 0 +3 +5 +7 What is the electron configuration for a lead atom? [Xe]6s^2+p^2 [Kr]+5d^106s^26p^2 [Xe]4f^145d^10106s^26p^2 [kr]4d^1…

What is the oxidation state of an individual bromine atom in NaBrO3? Part A What

What is the oxidation state of an individual bromine atom in NaBrO3? Part A What mass of silver chloride can be produced from 1.68 L of a 0.243 M solution of silver nitrate? Expre…

What is the oxidizing agent in the reaction 2Fe(s) + 3Cl_2(g) rightarrow 2FeCI_3

What is the oxidizing agent in the reaction 2Fe(s) + 3Cl_2(g) rightarrow 2FeCI_3(s)? Fe cl_2 Fecl_3 what is the oxidizing agent in the reaction 2C_2H_6(g) + 70_2(g) rightarrow 4CO…

What is the oxidizing agent in the redox reaction represented by the following c

What is the oxidizing agent in the redox reaction represented by the following cell notation? Mn(s) | Mn2+(aq) ? K+(aq) I K(s) a. Mn(s) b. Mn2(aq) c. K+(aq) d. K(s) c. Pt 9. Deter…

What is the pH a 0.0253 M Ca(OH)_2 solution at 25 degree C? What is the percent

What is the pH a 0.0253 M Ca(OH)_2 solution at 25 degree C? What is the percent ionization of a solution of 2.5 M HNO_2 that has a pH of 1.47? Consider the titrations below. Which…

What is the pH after 0.028 moles of NaOH is added to a 100.0mL buffer solution c

What is the pH after 0.028 moles of NaOH is added to a 100.0mL buffer solution containing 0.45M HOBr and 0.55M NaOBr ? Ka HOBr = 2.5 x 10-9 QUESTION 2 Which of the following occur…

What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume

What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid. Express the pH numerically to three decimal places. …

What is the pH at the equivalence point for the titration of 0.16M solutions of

What is the pH at the equivalence point for the titration of 0.16M solutions of the following acids and bases. NaHSO3 and NaOH This is what I did so far but it's incorrect and I'm…

What is the pH at the equivalence point for the titration of 0.24 M solutions of

What is the pH at the equivalence point for the titration of 0.24 M solutions of the following acids and bases... C5H11N (piperidine) and HNO3. NaHSO3 and NaOH. Ba(OH)2 and HBr. W…

What is the pH at the equivalence point when 100.00 mL of a 0.175 M solution of

What is the pH at the equivalence point when 100.00 mL of a 0.175 M solution of acetic acid (CH_3 COOH) is titrated with 0.10 M NaOH to its end point? Analyze For CH_3 COOH, the K…

What is the pH at the first equivalence point? Hint, its not 9.0, already tried

What is the pH at the first equivalence point? Hint, its not 9.0, already tried that. Info: Piperazine,HN(C4H8)NH , a diprotic weak base has the following properties: pKb1 = 4.22,…

What is the pH at the first equivalence point? Info: Piperazine,HN(C4H8)NH , a d

What is the pH at the first equivalence point? Info: Piperazine,HN(C4H8)NH , a diprotic weak base has the following properties: pKb1 = 4.22, pKb2= 8.67 For writing the reactions o…

What is the pH at the point in a in which 25.0 ml of 1.00M KOH has been added to

What is the pH at the point in a in which 25.0 ml of 1.00M KOH has been added to 20.0 mL of 1.00 HBr? 1.67 0.55 2.71 13.05 Which of the following statements could the following cu…

What is the pH at the stoichiometric point for the titration of 0.100 M CH_3COOH

What is the pH at the stoichiometric point for the titration of 0.100 M CH_3COOH(aq) with 0.100 M KOH(aq)? The value of K_c for acetic acid is 1.8 Times 10^-5. a) 8.72 b) 5.28 c) …

What is the pH at thestoichiometric point for the titration of 50 ml of 0.10 M m

What is the pH at thestoichiometric point for the titration of 50 ml of 0.10 M methylamine CH3NH2 (aq) with 0.10 M perchloric acid HClO4(aq)? For methylamine (CH3NH2), Kb = 3.6 x …

What is the pH difference of two samples if the concentration of [H+] ions is 10

What is the pH difference of two samples if the concentration of [H+] ions is 1000-fold less in the second sample? A. The pH of the first sample would be 3 pH units lower than the…

What is the pH of 0.00135 mol/L H2SO4(aq) at 25oC? For H2SO4, Ka1 is very large

What is the pH of 0.00135 mol/L H2SO4(aq) at 25oC? For H2SO4, Ka1 is very large and pKa,2=1.96 at 25oC. Give your answer accurate to two decimal places

What is the pH of 0.00135 mol/L H2SO4(aq) at 25oC? For H2SO4, Ka1 is very large

What is the pH of 0.00135 mol/L H2SO4(aq) at 25oC? For H2SO4, Ka1 is very large and pKa,2=1.96 at 25oC. Give your answer accurate to two decimal places

What is the pH of 0.033 M HCl? WebAssign will check your answer for the correct

What is the pH of 0.033 M HCl? WebAssign will check your answer for the correct number of significant figures. 12.52 The pH of 0.033 M HC2H3O2 is 3.11. Why don't the two equimolar…

What is the pH of 0.074 M HCl? _____________ The pH of 0.074 M HC 2 H 3 O 2 is 2

What is the pH of 0.074 M HCl? _____________ The pH of 0.074 M HC2H3O2 is 2.94. Why don't the two equimolar solutions of HCl and HC2H3O2 have the same pH? (Select all that apply.)…

What is the pH of 0.15M HNO2(aq) Solution HNO2 is a weak acid(electrolyte) hence

What is the pH of 0.15M HNO2(aq)

What is the pH of 0.15M HNO2(aq) Solution HNO2 is a weak acid(electrolyte) hence

What is the pH of 0.15M HNO2(aq)