Experiment name: Determination of the formula of a complex by 1- Mole-ratio method 2- Continuous variation method Q1: Discusion Q2: Purpose of
Q: A virus has a mass of 9.0 × 10 mg and an oil tanker has a mass of 3.0 × 10' kg. Use this information...
A: Answer and explanation is given below hope you like it
Q: CH, CH, HC-C=C-CH-CH,-CH=C-CH,-CH, CH, CH, Give the following: parent name: substituents. IUPAC NAME
A:
Q: Draw Lewis structures for each of the following. Count valence electrons, then determine the number ...
A: Lewis structure: Shape at central C: Trigonal planar From VSEPR, Hybridization=12(V+M-C+A)V=number ...
Q: Question 2: Which of the following is correct? I. 500 g written expressing 3 sig figs would = 5.000 ...
A:
Q: 6- Next, the 1H and 13C spectra of each of the three isomeric ketones with formula C7H14O are presen...
A:
Q: Which of the following undergoes a substitution reaction with sodium cyanide in DMSO at the fastest ...
A:
Q: Which of the following will not act as a Bronsted base in water at 298 K, and not participate in hyd...
A: Answer Which of the following will not act as a Bronsted base in w...
Q: What would be the final concentration if a 7.56 mL solution of 12 M NaCl solution is diluted to a vo...
A:
Q: A chemist dissolves 103. mg of pure hydrochloric acid in enough water to make up 90. mL of solution....
A:
Q: At constant volume, a sample of ammonia was changed to 3 atm and 452K, if the initial pressure of th...
A: Gay-Lussac's Law: The law that includes the parameters, temperature and pressure is Gay-Lussac's law...
Q: Determine DG0 for the reaction: 2CO(g) + 2H2(g) ---> CO2(g) + CH4(g) DH0 = -247.3 kJ/mol DS0 = -256....
A:
Q: What is the pH after 0.195 mol of NaOH is added to the buffer from Part A? Assume no volume change o...
A: Well, when NaOH is added, the equilibrium concentration of HA decreases and concentration of salt in...
Q: Directions: Write the balanced chemical equation and solve each of the following. Do this activity i...
A: 1) Given, Aluminium metal (Al) and hydrogen chloride (HCl) react to form aluminium chloride (AlCl3) ...
Q: Calculate the quantity of heat required to raise the temperature of 60.0 g of water from 22.1 °C to ...
A: Specific heat capacity is amount of heat capacity is required to raise temprature of one gram substa...
Q: Briefly explain: - why is it necessary to revise the heat capacity of the calorimeter when a solid ...
A: A question based on thermochemistry that is to be accomplished.
Q: In each box please fnd and then write the correct element by name, its atomic number, atomic mass, a...
A:
Q: laboratory procedure calls for 250 mL of an approximately 0.10 M solution of NH3. Describe how you ...
A:
Q: Determine if 4-Chloro-2-pentyne is correct. If incorrect, provide the correct IUPAC name. SUBMIT YOU...
A:
Q: A HCN NACN solution has a pOH of 8. The HCN concentration is 0.2F. Find the concentration of the NaC...
A: Given data is as follows: The pOH of the buffer solution = 8 The concentration of HCN = 0.2 F The Ka...
Q: Which of the following is NOT a weakness of the Meyer Overton theory? O does not explain why certain...
A: The Meyer-Overton speculation is the hypothesis of sedative activity which suggests that the strengt...
Q: * Reaction-2: Syn-dihychoaylation: meo ) OsOu meO. Eto Et o. Nause,, H0 OH
A: As I have shown in the image1 four asterisc centre and numering is done for simplicity, are all chir...
Q: Answer the following questions about the Lewis structure for ammonium carbonate, (NH4)2CO3 There are...
A: Lewis structure of NH4+ ion is given by, Lewis structure of CO3-2 ion is given by,
Q: Which of the four resonance structures for the sulfite ion below is the least favoured? Remember to ...
A: A resonance structure became more stable when it has more no of covalent bond and has less no of cha...
Q: Determine if 2,3-Dimethyl-5-octyne is correct. If incorrect, provide the correct IUPAC name. SUBMIT ...
A:
Q: Find the number of millimoles of solute in (a) 2.00 L of 0.0555 M KMnO4 (b) 750 mL of 3.25 x 10-3 M ...
A: M = n (mol)V (L) Molarity (mol/L) * V (L)...
Q: CH, -CH-CH,-CH=C-CH,-CH, CH, HC-C CH, CH, Give the following: parent name: substituents. IUPAC NAME
A: Using IUPAC rule.
Q: 3. A 0.709 g sample of H2C2O4:2H2O is dissolved in water and titrated to a phenolphthalein endpoint ...
A:
Q: H,C -CH CH CH H,C: CH structure 1 structure 2 Which is the more stable alkene? Explain your answer.
A: A question based on alkene that is to be accomplished.
Q: The addition of HCl to these compounds will follow Markovnikov’s rule EXCEPT a.1-pentene. b.1-buten...
A: Alkene gives an electrophilic addition reaction with hydrogen halide to form an alkyl halide.
Q: synthesis of Dibenzalacetone (A) In this lab you will need to determine the amounts of the reactants...
A: Number of moles of acetone = 0.0125 mol Molecular weight of acetone = 58 g/mol...
Q: 1.Calculate the number of moles and millimoles of benzoic acid (MM= 122.1 g/mol) that are contained ...
A:
Q: 5 Isopropylbenzene (C9H12) is commercially produced by Friedel–Crafts alkylation of compound H with ...
A:
Q: Based on reaction 1, how many isomers can be formed? Is the isomer cis or trans? The target molecul...
A: The answer is as follows:
Q: 13.3 L scuba tank contains a mixture of nitrogen, oxygen, and argon. 72% is nitrogen, 4% is argon, w...
A: Recall the relation between partial pressure and mole fraction of gas Partial pressure = Mole frac...
Q: One component of a solid mixture weighing 73.00 g is barium chloride (BaCl2). After being dissolved ...
A:
Q: Question 5 of 50 -/1 > View Policies Current Attempt in Progress When (S)-2-bromopropanoic acid [(S)...
A:
Q: The kinetics of the reaction between R and Z ions in an aqueous solution was investigated through mu...
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...
Q: Which of the following is NOT an isomer of the other three? а. b. C. d.
A: Isomer -these are one of two or more compounds that contain the same number of atoms or same molecu...
Q: The difference between ΔH and ΔE is _________. that one refers to the system and one refers to the ...
A: The total energy of a system is known as the internal energy of the system. The heat change at the c...
Q: How many grams of HC,H3O2 are there in 3.6 moles of HC,H;O2? How mon
A: Given-> Moles of HC2H3O2 = =3.6 moles
Q: You started with 1.000 g of unknown and isolated 0.9550 g of metallic Cu. What is the calculated for...
A: So,we have 0.995 g of Cu, Therefore, we must have 0.005 g of something else (Let it be x) Weight rat...
Q: Fill in the missing chemical formulae in the tables below. acid conjugate base base conjugate acid H...
A:
Q: conditichs Reachion takes place unoleracidic Led Pronde an amow mechanism N HL O meehanum Kor reaenu...
A: This is known as Mannich reaction.It undergoes via the formation of Mannich base.
Q: Describe the similarities and differences in the energy profiles for exothermic and endothermic reac...
A: Exothermic reaction are the chemical reactions in which energy is released and Endothermic reactions...
Q: Select the element, from the halogens, with the lowest 1st ionization energy? Which of the listed e...
A: 1. Select the element, from the halogens, with the lowest 1st ionization energy? Answer- Iodine beca...
Q: According to EPA, soft water contains a maximum of 75.0 ppm CaCO3. What is the equivalent maximum pC...
A: pCa of calcium can be calculated from the concentration of CaCO3.
Q: molarity, (b) molality, and (c) mole fraction
A:
Q: n1 = - 2.1787 x 10 18 J n2 = - 0.54468 x 10 18 J - 0,54468 v x 10-18 J n3 = n4 = [ Select ] x 10 18 ...
A:
Q: * 5 Sodium reacts with chlorine to form sodium chloride. Which row describes the bonding in the thre...
A: Sodium reacts with Cl2 to form NaCl.
Q: 1. Use condensed structural formulas to write the equation for the formation of methyl acetate. 2. A...
A: An alcohol and an acid condenses in acidic or basic condition to produce an ester . Most of the est...
Step by step
Solved in 2 steps
- What is meant by transmittance and absorbance and which term is more preferable when doing expermines such as determining the formula of a complex ion using colorimetric method. please don't reject the question :'( I really need to know :'( :'(The red color of soil is often due to the presence of iron. Metal ions are extracted from soil by stirring the soil in acid and then filtering the solution. One method for the analysis of Fe2+ is to form the highly colored Fe2+–thioglycolic acid complex. The complex absorbs strongly at 535 nm. Calibration standards of 1.00, 2.00, 3.00, 4.00, and 5.00 ppm are prepared by transferring appropriate amounts of a 10.0 ppm working solution of Fe2+ into separate 50-mL volumetric flasks, each of which contains 5 mL of thioglycolic acid, 2 mL of 20% w/v ammonium citrate, and 5 mL of 0.22 M NH3. After diluting to volume and mixing, the absorbances of the standards are measured. a)What is the effect on the reported concentration of iron in the sample if there is a trace impurity of Fe2+in the ammonium citrate?The red color of soil is often due to the presence of iron. Metal ions are extracted from soil by stirring the soil in acid and then filtering the solution. One method for the analysis of Fe2+ is to form the highly colored Fe2+–thioglycolic acid complex. The complex absorbs strongly at 535 nm. Calibration standards of 1.00, 2.00, 3.00, 4.00, and 5.00 ppm are prepared by transferring appropriate amounts of a 10.0 ppm working solution of Fe2+ into separate 50-mL volumetric flasks, each of which contains 5 mL of thioglycolic acid, 2 mL of 20% w/v ammonium citrate, and 5 mL of 0.22 M NH3. After diluting to volume and mixing, the absorbances of the standards are measured. a)Use the data table below to prepare a calibration curve (absorbance versus concentration in ppm). Fit the data to straight line and find the equation for the straight line and the R2 value. (Hint: Think about what to do with the absorbance of the blank.)
- according to Werner, which valency is not ionisable in a complex compound, primary or secondary ?Scott test is one of the methods used for screening for Cocaine in Forensic Chemistry. The multi step method consists of a) reacting the sample drug with cobaltous thiocyanate b) dissolving of the formed precipitate by adding HCl and c) extraction of coordination compound with Chloroform d) measurement of absorbance of extracted coordination compound at 627 nm All the reactions in this multistep method are not fully understood. However, it was determined that there are 2 moles of cocaine in coordination compound measured in last step. If coordination compound is represented as “Scott” coordination compound, which of the following is correct “stoichiometric” factor to get mass of cocaine from mass of measured complex ? a.g (Scott coordination cpd) * MM (Scott coordination cpd) MM (cocaine) b.g (Scott coordination cpd) * 2 *MM (Scott coordination cpd) MM…According to the IR spectroscopy results of [Co(NH3)5ONO]Cl2 and [Co(NH3)5NO2]Cl2 complexes, the symmetrical and asymmetrical NO stretching vibrations found for one of the complexes (I) are 1315 and 1430 cm-1, respectively, for the other complex (II). these values are 1065 and 1430 cm-1, respectively. According to the data, complex (I) is …………… and complex (II) is ………….
- The ESI mass spectrum (positive mode) of the complexshown below contained a peak envelope with m/z527.9 (100%), 528.9 (15%), 529.9 (46%), 530.9(7%), 531.9 (0.5%). A group of peaks of lowintensity and with spacings of m/z ¼ 1 was alsoobserved around m/z 994. (a) What is the oxidationstate of Cu in the complex? (b) Assign the majorpeak and account for the isotope pattern. (c) Suggesthow the minor peak arises. [The mass spectrum of the complex complex is shown on pic.]If you have an octahedral site (Coordination Number 6). What is the minimum rcation/ranion? Prove your answer.Consider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm with a molar absorptivity (ε) of 3.6 L mol-1 cm-1 . (I have a, b, and c, I need help with d, e, and f.) (a) What is the energy (in wavenumbers, cm-1 ) of the absorption peak? Show all work. (b) How many valence d electrons does the metal center have? Justify your answer. (c) How many unpaired electrons per molecule would a magnetic susceptibility experiment predict? What would the S number be for this transition metal center? Justify your answers. (d) What electronic transition results from absorption of 864-nm light? (e) Calculate the ligand stabilization energy (in units of ∆o) and units of coulombic (Πc) energy. (f) How would the ligand field strengths (∆o) of [Fe(NH3)6] 2+ and [Fe(bipy)3] 2+ differ from that of [FeBr6] 4−? Why?
- To the nearest whole wavenumber, predict the value of delta tet for a tetraquenickel(II) complex and compare its CFSE to the hexaquanickel(II) complexConsider the solvatochromic complex, [Mo(bipy)(CO)4]. The complex has a MLCT peak in the UV-vis spectrum. This peak is at 533 nm in acetonitrile solvent and at 584 nm in benzene solvent. In a 50:50 acetonitrile:benzene mixture, the peak is at 559 nm. Is the mixture of acetonitrile and benzene immediately surrounding the [Mo(bipy)(CO)4] molecules less than, equal to, or greater than a 50:50 mixture (acetonitrile:benzene)? Justify your answer. (HINT: Do you need to convert the wavelengths to a more appropriate unit?)b. Given that the cuvette path length was 1.17 cm, use the slope of this line to calculate the molar absorptivity of the cobalt complex at this wavelength. (Assume Beer’s law is obeyed.) c. An unknown cobalt sample was treated as follows: 40.8 mg of the unknown was dissolved in solvent to prepare 50.00 mL of solution in a volumetric flask. 4.00 mL of this solution was treated with thiocyanate, and diluted to a final volume of 50.00 mL. A sample of this final solution was placed in the same cuvette as the standards, and showed an absorbance of 0.38 at 625 nm. Determine the percentage of cobalt in the original unknown, given that the atomic mass of cobalt is 58.933 g/mol.