Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Suppose you are given 150mg of an unknown mixture that contains 3 compounds and you're told to separate the compounds using column chromatography using alumina as a stationary phase. How would you decide what solvent or solvent system to use?
The analysis of this compound shows that it contains 41.8 percent C, 4.7 percent H, 37.3 percent O, and 16.3 percent N. Calculate the molecular formula of the compound.
If 0.215 mole of calcium chloride is dissolved in 491.9 ml of water, how much will it change the temperature of water (FWt=18.02)? The delta H=-81.3 kJ/mole for CaCl2
A Sprinter set a high school record in track and field, running 200.0 m in 21.4s. What is the average speed of the sprinter in kilometers per hour? Express your answer numerically in kilometers per hour.
What individual atoms or functional groups could you add to the carbons to make the molecule hydrophobic?
The distance between layers in a crystal is 265 pm. X rays are diffracted from these layers at an angle of 20.1°. Assuming that n = 4, calculate the wavelength of the X rays in nm.
when a sample of h2sg 9.811 mol is placed in 180.0 l reaction vessel at 724.0 k and allowed to come to equilibrium the
prepare 100 mL each of five standard solutions: 2.00 x 10-5, 5.00 x 10-5, 1.00 x 10-4, 2.00 x 10-4, and 5.00 x 10-4 M. These will serve as your analytical standards, which means that their phosphate concentrations must be precisely known.
Sodium (Na) metal undergoes a chemical reaction with chlorine (Cl) gas to yield sodium chloride, or common table salt. If 3.00 g of sodium reacts with 4.62 g of chlorine, 7.62 g of sodium chloride is formed and 53.7 kJ of heat is released.
Acetic acid when pure, has a freezing point of 16.0 Celsius; Liquid acetic acid has a heat capacity of 1.96J/g*C. A 25.0 g piece of solid acetic acid at 16.0C is placed into an insulated container containing 50.0g of liquid acetic acid at 50.0C.
What wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction.
Teflonis a polymer synthsised by polymerisation of tetrafluoroethylene (F2C=CF2). use atomic masses: C = 12, F = 19 and answers in whole units. How many monomeric units would there be in one molecule of Teflon with a molar mass of 40000 g.
I need the important side reactions for the acid-catalyzed dehydration of 2-methycyclohexanol. Also i need the mmol of 2-methylcyclohexanol, phosphoric acid, and isomeric alkene products.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd