List of Chemistry sub-categories

Chemistry Recently Posted Questions

Question Subject Tutorials
Explain what was the ka value calculated by the student
  Part A Aspirin (acetylsalicylic acid,C9H8O4 ) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00 g of aspirin in 0.600L of water and measured th …
Chemistry / Biochemistry Get it Now
Explain the stereochemistry of the product
Sodium cyanide reacts with 2-bromobutane in dimethylsulfoxide to form a substitution product. Identify the configuration of the 2-bromobutane structure shown below. Then draw the substitution product …
Chemistry / General Chemistry Get it Now
What is the total potential
Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00 M solutions of their ions. a) If connected as voltaic cells in series, which …
Chemistry / General Chemistry Get it Now
Explain the solution reaches equilibrium
A solution is made that is 1.1×10^?3 M in Zn(NO3)2 and 0.150 M in NH3. After the solution reaches equilibrium, what concentration of Zn2+(aq) remains   …
Chemistry / General Chemistry Get it Now
Calculate the molar entropy of evaporation of ccl3f
  Trichlorofluoromethane (CCl3F) boils at 23.8C, and its molar heat of vaporization is 24.8 kJ/mol. Calculate the molar entropy of evaporation of CCl3F(l).   …
Chemistry / Biochemistry Get it Now
Depic resonance structures for 9-hydroxymethyl anthracene
Draw the resonance structures for 9-(hydroxymethyl)anthracene. Is it possible for all three rings to simultaneously have benzenoid character?   …
Chemistry / General Chemistry Get it Now
What advantage does using the wiley extractor
what advantage does using the Wiley extractor have over simply pouring acetone over the meat again and again?   …
Chemistry / General Chemistry Get it Now
Write the ground-state electron configuration
  Problem- Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron configuration for that element. Excited state Element …
Chemistry / Biochemistry Get it Now
What is the density of li2s in grams
  The crystal structure of lithium sulfide Li2S is pictured here. The edge length of the unit cell is 5.88*10^2pm. What is the density of Li2S in grams per cubic centimeter?   …
Chemistry / Biochemistry Get it Now
Explain what is the chemical formula a non-cyclic alkane
  If a non-cyclic alkane shows a molecular ion peak at m/z 2.40 × 102, what is the chemical formula?   …
Chemistry / Biochemistry Get it Now
Depict the structure of 2,4-diethyl-4-ethoxyhexane
  Depict the structure of 2, 4-diethyl-4-ethoxyhexane, explain which he cannot find in a chemical reference manual. Depict the structure of 2,4-diethyl-4-ethoxyhexane.   …
Chemistry / Biochemistry Get it Now
The intramolecular aldol condensation of 3-methylhexanedial
What enone product would you expect to obtain from intramolecular aldol condensation of 3-methylhexanedial   …
Chemistry / Biochemistry Get it Now
Find ph of the solution at equivalence point
  1- Consider the following curve (Figure 1) for the titration of a weak base with a strong acid and answer each question. Determine the concentrations of HNO 2 and NaNO 2 after addition of 1. …
Chemistry / Biochemistry Get it Now
Draw the path that light travels through a spectrophotometer
  Diagram the path that light travels through a spectrophotometer. Utilize flow chart format. Comprise white light source, measuring phototube, sample compartment and monochrometer.   …
Chemistry / Biochemistry Get it Now
State what is the empirical formula of the nitrogen hydride
  A 0.87mg sample of nitrogen reacts with hydrogen to form 1.058mg of the hydride. What is the empirical formula of the nitrogen hydride?   …
Chemistry / Biochemistry Get it Now
Calculate the binding energy per nucleon for 48ti
  Question - The nuclear mass of 48Ti is 47.9359 amu. Calculate the binding energy per nucleon for 48Ti. Express your answers to three significant figures separated by comma.   …
Chemistry / Biochemistry Get it Now
Depict every stereoisomer for 2-dimethylcyclopentane
  Draw every stereoisomer for 1,2-difluoro-1,2-dimethylcyclopentane. Use wedge and dash bonds for the substituent groups   …
Chemistry / Biochemistry Get it Now
Explain dominant at physiological ph and formic acid
  modify the 3 molecules so that they show the form that is dominant at physiological pH: formic acid, acetylsalicylic acid (aspirin), and citric acid   …
Chemistry / Biochemistry Get it Now
Calculate the energy of a photon
Calculate the energy of a photon of wavelength 11.56 meters. (Planck's constant is 6.626 x 10-34 joule seconds; the speed of light is 2.998 x 108 m/s)   …
Chemistry / General Chemistry Get it Now
Explain what is the lewis structure and molecular shape
What is the lewis structure and molecular shape around the carbons in CCl2CH2 as predicted by the VSEPR theory?   …
Chemistry / General Chemistry Get it Now
Whatsapp Lisa