Chemistry concepts and calculations

(a) which tertiary carbocations is more stable, 1-adamant or t-butyl? explain wh

(a) which tertiary carbocations is more stable, 1-adamant or t-butyl? explain why it is more stable and tell how your experimental results support this conclusion. (b) which solve…

(a) work out the ground state electronic configuration of Sn. Which has 50 elect

(a) work out the ground state electronic configuration of Sn. Which has 50 electrons. Show how you get your answer.( Do not use abbreviations for full shells)( Example: for K with…

(a) write a balanced chemical equation for the reaction that takes place in a st

(a) write a balanced chemical equation for the reaction that takes place in a styrofoam cup. (b) Is any NaOH or H2SO4 left in the cup when the reaction is over? (c) Calculate the …

(a). The world ocean absorbed 193.0 x 10^21 Joules of heat between 1972 and 2008

(a). The world ocean absorbed 193.0 x 10^21 Joules of heat between 1972 and 2008. Estimate what must have been the average rate of global ocean temperature increase over this peri…

(a). Why is the wavelength of maximum absorption usually selected for colorimetr

(a). Why is the wavelength of maximum absorption usually selected for colorimetric determination?(b). Beer’s law is useful for determining the conc. of solute only when the relati…

(a)A 2.0 g sample of juice from a fresh lime was diluted with water and filleted

(a)A 2.0 g sample of juice from a fresh lime was diluted with water and filleted to remove suspended matter. The clear liquid required 40.39mL of 0.04022M NaOH for titration to th…

(a)According to Bronsted-Lowry, an acid is a substance that can accepta proton a

(a)According to Bronsted-Lowry, an acid is a substance that can accepta proton and a base is asubstance that can donate a proton. (b)Heterolysis is the process by which a bond so …

(a)Calculate the PH at equivalence point in titrating 0.100 M solutions of ( a)

(a)Calculate the PH at equivalence point in titrating 0.100 M solutions of ( a) chlorous acid (hclo2) with 0.080MNaOH. the ka for chlorous acid is 1.1*10^-2 (b)calculate the ph at…

(a)Calculate the PH at equivalence point in titrating 0.100 M solutions of ( a)

(a)Calculate the PH at equivalence point in titrating 0.100 M solutions of ( a) chlorous acid (hclo2) with 0.080MNaOH. the ka for chlorous acid is 1.1*10^-2 (b)calculate the ph at…

(a)If the angle if incidence of light on a diffraction grating is 0.0 degrees wh

(a)If the angle if incidence of light on a diffraction grating is 0.0 degrees what is the wavelength of light in (nm) which will be reflected by 38.5 degrees in first order if the…

(a)If the angle if incidence of light on a diffraction grating is 0.0 degrees wh

(a)If the angle if incidence of light on a diffraction grating is 0.0 degrees what is the wavelength of light in (nm) which will be reflected by 38.5 degrees in first order if the…

(a)Methane: Methane is in gasseous state at room temperature. It is a colorless

(a)Methane: Methane is in gasseous state at room temperature. It is a colorless and odourless gas at room temperature.Methane also known as natural gas, has variety of application…

(a)The magnitude of the force on a charged particle in a magnetic field is given

(a)The magnitude of the force on a charged particle in a magnetic field is given by the equation F = qvB sin(). Select all the correct statements about this from the list below. 1…

(a)The question clearly states that the chromatography technique is used to sepa

(a)The question clearly states that the chromatography technique is used to separate and detect essential oils which are volatile. Thus, observing the nature of oils, and based on…

(a)The sol\'n for adults should be 500.0 mg of amoxicillin per 5.0 ml. What is t

(a)The sol'n for adults should be 500.0 mg of amoxicillin per 5.0 ml. What is the molarity of this sol'n? I found this to be ~.27M. Part B) How much amoxicillin would you need to …

(a)Write a mechanism for the following reaction. (b) What general conditions wou

(a)Write a mechanism for the following reaction. (b) What general conditions would you use to ensure a good yield of the product? (c) What general conditions would you use to carr…

(a)Xanthine absorbs at 260 nm with an extinction coefficient of 3.85 x 103 M-1 c

(a)Xanthine absorbs at 260 nm with an extinction coefficient of 3.85 x 103 M-1 cm-1 . An absorbance of 0.72 was recorded in a 1 cm cuvette containing 3 mL of solution. Stock solut…

(a.) Draw Lewis dot structures for dioxygen gas and dinitrogen gas and (b). writ

  (a.) Draw Lewis dot structures for dioxygen gas and dinitrogen gas and (b). write    molecular orbital electronic configurations for dioxygen gas and dinitrogen gas. Based on   …

(a.) Trityl fluoborate could have been used to make tropylium fluoborate in this

(a.) Trityl fluoborate could have been used to make tropylium fluoborate in this experiment. Write a balanced equation for a reaction that could take place if you accidentally spi…

(acety Isanicy acid) molecule? 2. Which of the following was originally marketed

(acety Isanicy acid) molecule? 2. Which of the following was originally marketed as a cough suppressant? a. acetaminophen b. aspirin. c. heroin d. methadone 2s. Which of the follo…

(activity in terms of molality) (van\'t Hoff equation) (integrated form of van\'

(activity in terms of molality) (van't Hoff equation) (integrated form of van't Hoff T T2 equation) (logarithmic form of K) 5.3. Which system in each pair best represents equilibr…

(b) (5) a) write the equilibrium constant expression for the reaction: N20g) 3H2

(b) (5) a) write the equilibrium constant expression for the reaction: N20g) 3H20g) 2NHy(g) b Calculate the equilibrium constantin: IN2l 0.071 M: IH2l 9.2x10 M: INE,l 1.8x10 M Ass…

(b) 100.0 mL of 0.40 M C2H5NH2 (Kb = 5.6 multiplied by 10-4) titrated by 0.80 M

(b) 100.0 mL of 0.40 M C2H5NH2 (Kb = 5.6 multiplied by 10-4) titrated by 0.80 M HNO3 (c) 100.0 mL of 0.67 M HCl titrated by 0.34 M NaOH

(b) 6 pts. Write the correct, full name of each of the ceramic crystal structure

(b) 6 pts. Write the correct, full name of each of the ceramic crystal structures shown below on the line beneath each. The name must be complete and correct for full credit. arti…

(b) A city have population of 500000 capita and current per capita demand is 165

(b) A city have population of 500000 capita and current per capita demand is 165 li tre/day. The population increases by 1%. The average consumption ofwater increases by 22% in su…

(b) A soft drink was analysed for soluble reactive phosphoras (SRP) by the molyb

(b) A soft drink was analysed for soluble reactive phosphoras (SRP) by the molybdenum blue/tartrate/ascorbic acid spectrophotometric technique. The operating range of the method i…

(b) A soft drink was analysed for soluble reactive phosphorus (SRP) by the molyb

(b) A soft drink was analysed for soluble reactive phosphorus (SRP) by the molybdenum blue/tartrate/ascorbic acid spectrophotometric technique. The operating range of the method i…

(b) Acid is added to an octanol/water immiscible solution, at 298 K and l atm pr

(b) Acid is added to an octanol/water immiscible solution, at 298 K and l atm pressure. At equilibrium the concentration of the acid in the aqueous phase is 0.18 M and that in the…

(b) Based on your knowledge of the periodic trend in first ionization energy , p

(b) Based on your knowledge of the periodic trend in first ionization energy, place the following in order of INCREASING first ionization energy such that 1 is the element with th…

(b) Calculate how much heat (in joules) transferred between the system and the s

(b) Calculate how much heat (in joules) transferred between the system and the surroundings in this experiment. (c) Calculate the molar heat of the neutralization reaction (in kJ/…

(b) Cite experimental evidence for your answer. C. Miscibility of Liquids 1. Whi

(b) Cite experimental evidence for your answer. C. Miscibility of Liquids 1. Which liquid pairs tested are miscible? 2. How do you classify the liquid pair decane-H2O, miscible or…

(b) Figure 1: question-3 4. Suppose you apply variable voltage across an incande

(b) Figure 1: question-3 4. Suppose you apply variable voltage across an incandescent, bulb , and due to the current the bulb glows. Now you very slowly increases the voltage and …

(b) For many complex reactions in natural systems, reaction rates are approximat

(b) For many complex reactions in natural systems, reaction rates are approximated by a fitting an overall reaction and determining a "pseudo-order" rate expression and rate const…

(b) Glycerol reacts with nitric acid (HNO3) to produce a colourless liquid, Comp

(b) Glycerol reacts with nitric acid (HNO3) to produce a colourless liquid, Compound D (Reaction 1). This reaction is undertaken in the presence of a catalyst (sulfuric acid, H2SO…

(b) How many moles of H 2 O 2 were present in the 19.4-g sample of bleach?The ac

(b) How many moles of H2O2 were present in the 19.4-g sample of bleach?The active agent in many hair bleaches is hydrogen peroxide. The amount of H2O2 in 19.4 g of hair bleach was…

(b) IF. Give the oxidation number of the underlined atoms in the AN alO a, (i) K

(b) IF. Give the oxidation number of the underlined atoms in the AN alO a, (i) Ko TM2, (m) PFo.(n) KAuci4. Give the oxidation number for the following species: Hz. See, P4. O. U. …

(b) If 0.01 M of each of the following ions is in the solution, which will form

(b) If 0.01 M of each of the following ions is in the solution, which will form a precipitate? (Select all that apply.)In a qualitative analysis procedure, a chemist adds HCl to a…

(b) If 3.0% of the heat being measured was being lost to the universe, determine

(b) If 3.0% of the heat being measured was being lost to the universe, determine whether they could they distinguish between iron (s = 0.444 J/g · °C) and Ni (s = 0.449 J/g · °C).…

(b) If 3.8 kcal (16 kJ) is released by combustion of each gram of glucose, how m

(b) If 3.8 kcal (16 kJ) is released by combustion of each gram of glucose, how many kilocalories are released by the combustion of 1.50 mol of glucose? How many kilojoules? (c) Wh…

(b) If a solution of Sn2+ ions were added to a blue solution of the [Co(H2O)6]2+

(b) If a solution of Sn2+ ions were added to a blue solution of the [Co(H2O)6]2+/[CoClf-equilibrium what would you observe? Justify your answer with balanced chemical equations an…

(b) In a second experiment, the nitrogen monoxide gas produced in the reaction o

(b) In a second experiment, the nitrogen monoxide gas produced in the reaction occupied 638 cm2 at 101 kPa and 298 K. Calculate the amount, in moles, of NO gas produced (The gas c…

(b) Pentane, C,H,2, and hexane, C,H14, combine to form an ideal solution. At 25°

(b) Pentane, C,H,2, and hexane, C,H14, combine to form an ideal solution. At 25°C the vapor pressures of pentane and hexane are 511 and 150 torr, respectively. A solution is prepa…

(b) Solid silver chloride is added to a solution of concentrated hydrochloric ac

(b) Solid silver chloride is added to a solution of concentrated hydrochloric acid, forming a complex ion. (i) Balanced equation: AgCl+ Cl- [AgCIJ' (ii) Which species acts as a Le…

(b) The decomposition of silver carbonate (Ag2 COs) is given by Ag,C03(s) Ag20(s

(b) The decomposition of silver carbonate (Ag2 COs) is given by Ag,C03(s) Ag20(s) + CO2(g) where (s) and (g) denote solid and gas phases, respectively. Equilibrium constants of th…

(b) The reaction is known to be first order with respect to bleach. In a second

(b) The reaction is known to be first order with respect to bleach. In a second experiment, the student prepares solutions of food coloring and bleach with concentrations that dif…

(b) Which is the stronger conjugate acid (which behaves as an acid), the ammoniu

(b) Which is the stronger conjugate acid (which behaves as an acid), the ammonium ion or the methylammonium ion? (c) Given Kb above, use KW to calculate Ka for THEIR conjugate aci…

(b) Would a proton traveling at the same speed require a greater or lesser magni

(b) Would a proton traveling at the same speed require a greater or lesser magnitude of electric potential difference? Explain.. (c) Find a symbolic expression for the ratio of th…

(b) Write a function with header def computeWordFrequencies(filename): that take

(b) Write a function with header def computeWordFrequencies(filename): that takes a string parameter called filename and reads from a file of that name and returns a list, say L, …

(b) Write a method public int[] [] separate(int [] a) that returns a 2D array wh

(b) Write a method public int[] [] separate(int [] a) that returns a 2D array where the first row contains the even-indexed elements from a, and the second row contains the odd-in…

(b) a mixture containing 0.136 M HC 3 H 5 O 2 and0.136 M NaC 3 H 5 O 2 pH_______

(b) a mixture containing 0.136M HC3H5O2 and0.136 MNaC3H5O2 pH____________ percent dissociation___________% Thedifference is due to the entropy effect. Thedifference is due to the …