List of Chemistry sub-categories

Chemistry Recently Posted Questions

Question Subject Tutorials
Explain and Propose a Structure for a C6H15O2N Compound
Propose a structure for a C6H15O2N compound that is unstable in aqueous acid and has the following NMR spectra:1H NMR: ? 2.30 (6H, s); ? 2.45 (2H, d, J = 6 Hz); ? 3.27 (6H, s); ? 4.50 (1H, t, J = 6 Hz …
Chemistry / General Chemistry Get it Now
What is the concentration of k+ dissociation
  Problem- What is the concentration of K+\rm K^+ ions in a 0.045 M~M K2CO3\rm K_2CO_3 solution assuming complete dissociation? Express your answer to two significant figures and include th …
Chemistry / General Chemistry Get it Now
Explain Phosphoric Acid Is a Triprotic Acid
Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.500 M phosphoric acid sol …
Chemistry / General Chemistry Get it Now
How many possible isomers could exist for diacetylferrocene
  How many possible isomers could exist for diacetylferrocene? Explain. Calculate the volume of 3M aqueous sodium hydroxide needed to neutralize the acetic and phosphoric acids in the synthesi …
Chemistry / General Chemistry Get it Now
Depict major organic products for the sn1 reaction
  Select the correct IUPAC name for the following organic substrate, including the R or S designation where appropriate, and draw the major organic product(s) for the SN1 reaction.   …
Chemistry / Biochemistry Get it Now
Explain What Is the Percentage of NaCI in the Impure Sample
If an impure sample of table salt that weighed 0.8421 g, while dissolved in water and treated with excess AgNO3, formed 2.044 g of AgCl. Explain what is the percentage of NaCl in the impure sample? …
Chemistry / General Chemistry Get it Now
Briefly Define How You Will Isolate P-Tert-Butylphenol
Briefly explain how you will isolate p-tert-butylphenol after you have extracted it into NaOH solution.   …
Chemistry / General Chemistry Get it Now
Calculate the binding energy per nucleon for 56fe
  Question- 1) The nuclear mass of 56Fe is is 55.9207 amu. Calculate the binding energy per nucleon for 56Fe. 2) The nuclear mass of 48Ti is is 47.9359 amu. Calculate the binding energy per …
Chemistry / Biochemistry Get it Now
Calculate the Empirical Formula for Natural Flavors
Problem- Calculate the empirical formula for each of the following natural flavors based on their elemental mass percent composition. A)- nitroglycerin (used medically as a vasodilator to treat hea …
Chemistry / General Chemistry Get it Now
Define Volatileliquid and Heats the Flask in a Boiling Water
A student observes that a 126 mL dry flask with a foil capweighs 50.162g. The student then adds 5 mL of an unknown volatileliquid and heats the flask in a boiling water bath at 99.2C(degrees) until al …
Chemistry / General Chemistry Get it Now
The Wall of a Flask Is Periodically Rinsed
  (1) A. In determining the percent acetic acid in vinegar, the mass of each vinegar sample is measured rather than volume. Explain. (1) B. If the vinegar were measured volumetrically (e.g. …
Chemistry / General Chemistry Get it Now
What is the number of bonds
  In the H3CNCO molecule, the carbon, nitrogen, and oxygen atoms are bonded in the order CNCO. The three H atoms are bonded to the first carbon atom. Draw the most important Lewis structure fo …
Chemistry / General Chemistry Get it Now
What mass of cacl2 (in g ) should the chemist use
  A chemist wants to make 5.5L of a 0.280M CaCl2 solution.What mass of CaCl2 (in g ) should the chemist use?   …
Chemistry / Biochemistry Get it Now
Depict the expanded structural formula
  Draw the expanded structural formula for the following condensed formula. (Draw all hydrogen atoms.) CHCl2CH=C(CH3)2   …
Chemistry / General Chemistry Get it Now
Find out value of ksp and show by calculations
  1. If the standard solutions had unknowingly been made up tobe 0.0024 M AgNO3 and 0.0040 M K2CrO4, would this have affected your results? Why? 2. If your curvette had been dirty, how woul …
Chemistry / General Chemistry Get it Now
How many dozens of silver atoms are in jewelry piece
  Suppose a piece of silver jewlery contains 5.00 * 10^22 of silver. how many dozens of silver atoms are in the piece of jewlery?   …
Chemistry / Biochemistry Get it Now
Compute the lattice energy of cabr2
  Given the following thermodynamic data, calculate the lattice energy of CaBr2 (s). Term & Value Delta Hf[Ca(g)] 179; delta Hf[Ba(g)] 112; I1(Ca) 590; I2(Ca) 1145; E(Br) -325.   …
Chemistry / Biochemistry Get it Now
Explain what is the molar mass of element x
  A 85.2 g sample of compound X4O10 contains 48.0 g of oxygen atoms. what is the molar mass of element x?   …
Chemistry / General Chemistry Get it Now
Explain components are glycerol and butanoic acid
Draw the fat molecule whose components are glycerol and butanoic acid. You may omit hydrogen atoms.   …
Chemistry / General Chemistry Get it Now
Depict the product formed by the reaction of potassium
Draw the product formed by the reaction of potassium t-butoxide with (1S,2S)-1-bromo-2-methyl-1-phenylbutane (shown below). (Draw the correct stereoisomer of the product.)   …
Chemistry / General Chemistry Get it Now
Whatsapp Lisa