Chemistry concepts and calculations
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the other half of the buffer + 6.0mL 1 M NaOH Calculate the expected pH of solut
the other half of the buffer + 6.0mL 1 M NaOH Calculate the expected pH of solutions prepared as given below. Enter the results into the Calculated pH blocks on the second page of…
the oxidation number of each element, and determine what is axidized and reduced
the oxidation number of each element, and determine what is axidized and reduced, and the oxidizing and reducing agents in the following reactions b. Zn(s) + Cusods) ZnSOdaq) + Cu…
the pH of a solution is defined as a measure of its hydrogen ion concentration.
the pH of a solution is defined as a measure of its hydrogen ion concentration. which of the following correctly defines the relationship between the pH and the hydrogen ion conce…
the partial pressure of O2 in air is 158 mmHg at 25 degrees C and a total pressu
the partial pressure of O2 in air is 158 mmHg at 25 degrees C and a total pressure of 760 mmHg. The air that is expired from your lungs after breathing has a partial pressure of O…
the partition coefficient between methylene chloride and water for muctane is 4.
the partition coefficient between methylene chloride and water for muctane is 4.0 in favor of methylene chloride. A Solution of 500 mg of muctane is dissolved in 1000 microliters …
the phosphoric acid in a 100.00 ml sample of coca cola drink was titrated with 0
the phosphoric acid in a 100.00 ml sample of coca cola drink was titrated with 0.1025 M NaOH . if the first equivalence point occurred after 16.11 mL of base was added, ans the se…
the phrases that accurately describe properties of the most common form of the D
the phrases that accurately describe properties of the most common form of the DNA double helix. There is more than one correct answer. Select all that apply. A helical turn consi…
the physical state of a and b below the eutectic temperature for mixtures of bla
the physical state of a and b below the eutectic temperature for mixtures of blackboard.boisestate.edu Sp18 CHEM 308 Organic Lab... htt Take w Question Completion Status: QUESTION…
the physical state of a and b below the eutectic temperature for mixtures of bla
the physical state of a and b below the eutectic temperature for mixtures of blackboard.boisestate.edu Sp18 CHEM 308 Organic Lab... htt Take w Question Completion Status: QUESTION…
the picture below are the data to do them ------------------------------ Part 3:
the picture below are the data to do them ------------------------------ Part 3: Effect ofTemperature on Cell Potential Focus Questions: 1) How does temperature affect the cell po…
the plate has 259 colonies, with a total dilution of 10^-6. what was the origina
the plate has 259 colonies, with a total dilution of 10^-6. what was the original concentration in the sample? While I know that the answer is 2.59x10^8 CFU/ml, could someone expl…
the position versus time for a certain particle the position versus time for a c
the position versus time for a certain particle the position versus time for a certain particle the position versus time for a certain particle 122-Chem 2018-B 8 #2 KQuestion 9 (o…
the position versus time for a certain particle the position versus time for a c
the position versus time for a certain particle the position versus time for a certain particle the position versus time for a certain particle 122-Chem 2018-B 8 #2 KQuestion 9 (o…
the previous answers that I got were allwrong: -5490, 1356, -18.6, 18.6, -18600,
the previous answers that I got were allwrong: -5490, 1356, -18.6, 18.6, -18600, -1595, -17.6, 17.6 Grxn. = G Products - G reactants -5490kJ = [ 8 x (-394.36) kJ + 10…
the problem reads. you are a purchasing agent of a startup biotechnological firm
the problem reads. you are a purchasing agent of a startup biotechnological firm. If your case cost $11.80 per pound and a bottle contains 5.0 kilograms how much would you pay for…
the purpose of oop using classes is to encapsulate members from the outer space.
the purpose of oop using classes is to encapsulate members from the outer space. i always read that accessing members should be done by methods. for example: template<typename …
the question about the DVD please (2.00 x 183.9)/[(6.02 × 1023) × (1.61 × 10-8)3
the question about the DVD please (2.00 x 183.9)/[(6.02 × 1023) × (1.61 × 10-8)3] = c. 0.8161/(2.205 × (2.5 ] = d. (9.00 × 60.0) + (50.0 × 60.0) + (3.00 × 101) = 51. Boston Marath…
the question is regarding step 9 and 12, i put the most of the prodcedure up jus
the question is regarding step 9 and 12, i put the most of the prodcedure up just in case . please help me understand it becasue it doesn't make sense to me. question at the botto…
the questions are answerd: please solve 19-20-21 step by step and explain why 22
the questions are answerd: please solve 19-20-21 step by step and explain why 22-23 answers ? 19. Wha ms n -4.9 × 10- a. 2.1 g b. 4.9 g 0.95 g o-6= 4 e, the vertical portion aroun…
the questions are dealing withe the preparation of 4-Bromo-2-chloroacetanilide,
the questions are dealing withe the preparation of 4-Bromo-2-chloroacetanilide, what is the answer to questions 1 and 2? lake sure the windows are open, then collect the precipita…
the questions are related The phase diagram shown is for C_2CI_4 a substand used
the questions are related The phase diagram shown is for C_2CI_4 a substand used in dry cleaning. During the drying cycle, C_2 Cl_4 evaporates at 330 K. Estimate the vapor pressur…
the rate at which a substance through a semipermeable membrance is determined by
the rate at which a substance through a semipermeable membrance is determined by the diffusivity D(cm^2/s)of the gas . D varies the membrance temperature T(K) according to the arr…
the rate at which a substance through a semipermeable membrance is determined by
the rate at which a substance through a semipermeable membrance is determined by the diffusivity D(cm^2/s)of the gas . D varies the membrance temperature T(K) according to the arr…
the rate constant of a chemical reaction increased from .100s-1 to 2.90s-1 upon
the rate constant of a chemical reaction increased from .100s-1 to 2.90s-1 upon raising the temperature from 25 C to 45C. calculate the value of (1/t2-1/t1) where t1 is the initia…
the rate constant of a first-order rxn is 3.25x10 -4 s -1 at 350 drees celcius.
the rate constant of a first-order rxn is 3.25x10-4s-1 at 350 drees celcius. if the activation energy is 129kJ/mol, calculate the temperature at which its rate constant is 9.15x10…
the rate constant of a first-order rxn is 3.25x10 -4 s -1 at 350 drees celcius.
the rate constant of a first-order rxn is 3.25x10-4s-1 at 350 drees celcius. if the activation energy is 129kJ/mol, calculate the temperature at which its rate constant is 9.15x10…
the rate law of the slow stepmust match the rate law of the overall reaction AND
the rate law of the slow stepmust match the rate law of the overall reaction AND the elementarysteps must add up to the overall reaction. What are the two requirements for amechan…
the rate of reaction r= K[A] m [B] n , where m and n are orders of reaction with
the rate of reaction r= K[A]m [B]n, where m and n are orders of reaction with respect to A and B respectively and K is rate constant. from 1st data point, given [A]=[B]=1.5, rate=…
the reaction 2A + B ---> C + 2D was found to be first order in A and B. Which of
the reaction 2A + B ---> C + 2D was found to be first order in A and B. Which of the following is true? a. rate=k[A]^2[B] b. rate=k[A]^2 c. rate of consumption of A = rate of c…
the reaction Cr(NH3)6^3+(aq)+3en(aq)=Cr(en)3^3+(aq)+6NH3(aq) where en represents
the reaction Cr(NH3)6^3+(aq)+3en(aq)=Cr(en)3^3+(aq)+6NH3(aq) where en represents ethylenediamine, has a small value for the enthalpy change,deltaHrxn, yet the free energy change i…
the reaction between iron (ii) oxide and carbon monoxide produces iron and carbo
the reaction between iron (ii) oxide and carbon monoxide produces iron and carbon dioxide. how many moles of iron can be obtained when 4.00 mol FeO reacts with an excess of CO? Un…
the reaction between iron (ii) oxide and carbon monoxide produces iron and carbo
the reaction between iron (ii) oxide and carbon monoxide produces iron and carbon dioxide. how many moles of iron can be obtained when 4.00 mol FeO reacts with an excess of CO? Un…
the reaction can be done with simple carbonyl compounds like acetone or 1,3 dica
the reaction can be done with simple carbonyl compounds like acetone or 1,3 dicarbonyls like acetylacetonde. the conditions for the reactions and the limitations Upton them are qu…
the reaction for decomposition of dinitrogen monoxide gas to form oxygen radical
the reaction for decomposition of dinitrogen monoxide gas to form oxygen radicals is: N2o(g)->N2(g)+O(g). If thr rate constant k is 3.04x10^(-2) s^(-1) and the frequency factor…
the reaction is: CaCl 2 (aq) + Na 2 CO 3 (aq) ? CaCO 3 (s) + 2NaCl(aq) Mass Gram
the reaction is: CaCl2(aq) + Na2CO3(aq) ? CaCO3(s) + 2NaCl(aq) Mass Grams Mass of CaCl Mass of Na2CO Mass of Filter Paper Mass of Product, CaCO3 (Experimental Yield) Experimental …
the reaction of A + B ? AB, the following data were obtained: Trial Initial [A]
the reaction of A + B ? AB, the following data were obtained: Trial Initial [A] Initial [B] Initial Rate 1 0.40 0.40 0.480 mol/dm3/s 2 0.40 0.80 1.92 mol/dm3/s 3 0.20 0.…
the reaction of ethyl-tetrabromide with zinc dust proceed as shown in the figure
the reaction of ethyl-tetrabromide with zinc dust proceed as shown in the figure below the reaction is C_2H_2Br_4+2Zn-----> C_2H_2+2ZnBr_2 based on one pass through the reactor…
the reaction of salicylic acid (C7H6 O3)with acetic anhydride (C4H6 O3) produces
the reaction of salicylic acid (C7H6 O3)with acetic anhydride (C4H6 O3) produces aspirin (C9H8 O4) and acetic acid (C2H4 O2) according to the following equation : C7H6O3+C4H6O3--&…
the reaction shown in egn 3 occurs instantaneously. Thus, all of the p chemicals
the reaction shown in egn 3 occurs instantaneously. Thus, all of the p chemicals that are used in this reaction must be completely dry (an under anhyedrous conditions In the prese…
the reaction taking place is: Cl2 + 2 Na —> 2 NaCl 1st find the mol of Cl2 react
the reaction taking place is: Cl2 + 2 Na —> 2 NaCl 1st find the mol of Cl2 reacting Given: P = 1.21 atm V = 0.745 L T = 22.0 oC = (22.0+273) K = 295 K find number of moles usin…
the reaction, 2 NO2(g) + O3(g)----->N2O5(g) + O2(g), was studied at a certain te
the reaction, 2 NO2(g) + O3(g)----->N2O5(g) + O2(g), was studied at a certain temperature with the ?following results: ?Experiment [NO2(g)] (M) [H2(g)] (M) RATE 1 .0782 .0782 4…
the reaction: 4 Hrvo,le) 2NOdg) 2NO (a) 2H-O(e) (ql (Rate law HNO P). The chemic
the reaction: 4 Hrvo,le) 2NOdg) 2NO (a) 2H-O(e) (ql (Rate law HNO P). The chemicaf kinetics data based concentration of HNO, at 520 K are given as follows on the instantaneous Tim…
the reactions above involve synthesis or owLv2/ Online teaching and learn owLv21
the reactions above involve synthesis or owLv2/ Online teaching and learn owLv21 Online teaching and learning Review Topics) 1. 2. Ph H2SO4 Ph Ph Tamoxifen anti (brest) cancer dru…
the reagents appropriately from the following amounts. Add 1.5 mL of methanol to
the reagents appropriately from the following amounts. Add 1.5 mL of methanol to the cam. phor contained in a.50-mL flask. Stir with a glass stirring rod until the camphor has dis…
the recommended pressure for a certain truck tire is 1.72X10^5 Pascals above atm
the recommended pressure for a certain truck tire is 1.72X10^5 Pascals above atmospheric pressure. the temperature of the day the tire is filled is 20 degrees C and the air pressu…
the recrystallization of 30 g of impure benzoic acid gave25.3g of pure compound.
the recrystallization of 30 g of impure benzoic acid gave25.3g of pure compound. give the percent recovery. i have no idea what recrystallization is or to find thepercent recovery…
the relation between rate of decomposition of H2O2 ( -d[H2O2]/dt) vs rate consta
the relation between rate of decomposition of H2O2 ( -d[H2O2]/dt) vs rate constant K and order (n) is given by -d[H2O2]/dt= K[H2O2]n, at t=0 , [H2O2]= [H2O2]o= initial concentrati…
the resulting pattern in the protein is an example of what kind of structure? (P
the resulting pattern in the protein is an example of what kind of structure? (Primary, secondary, tertiary, or quaternary) Exercise 19.66 with eText link Part A The resulting An …
the runoff from a 1.2 acre parking lot is directed to a small flood control basi
the runoff from a 1.2 acre parking lot is directed to a small flood control basin with a storage capacity of ~120.000 gallons. The basin has an average surface are of 1,300 sq-ft …
the runoff from a 1.2 acre parking lot is directed to a small flood control basi
the runoff from a 1.2 acre parking lot is directed to a small flood control basin with a storage capacity of ~120.000 gallons. The basin has an average surface are of 1,300 sq-ft …
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