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Equivalent weight of potassium permanganate in alkaline medium is:
A) molecular weight/1
B) molecular weight/3
C) molecular weight/5
D) molecular weight/6
What will be its equivalent weight in acidic medium?
Which of the following is a tertiary alkyl halide. Can you please expalin why A) (CH3)2CHBr B) (CH3)2CHCH2CI C) (CH3)3CCI D) CH3CH2CHBr2 E) CH3CHBr2
Classify each of the following molecules as polar or nonpolar: a) GeH4; b) I2; c) CF3Cl; d) PCl3; e) BCl3; f) SCl2.
The treatment of acetal A with aqueous acid initially produces unstable compound B, which has a band in its IR spectrum at ~1730 cm-1. However, this compound is only stable at very low temperature. At room temperature, it reacts to form compound C..
While properly prepared, maple syrup will boil at a temperature 4.0 degree Celsius higher than pure water. Compute the final pressure that would need to be applied to the maple sap solution in order to remove the majority of the water by reverse o..
at 100.0 degrees celsius and 1.00 atm delta h 40.6 for the vaporization of water. estimate delta g for the vaporization
How many grams of dry NH_4Cl need to be added to 2.10 L of a 0.100 it M solution of ammonia, NH_3, to prepare a buffer solution that has a pH of 8.84? K_b for ammonia is 1.8 * 10^{-5}
compute the water volume that is released upon its total metabolism to carbon dioxide and H 2 O, taking into account any oxidative phosphorylation that might occur.
nitrogen has a henrys law constant of 8.42x10-7 mmmhg at 25degreesc when dissolving in water. if the total pressure of
What mass of glucose (180.0 g/mol) must be added to 0.50 kg of water to increase the boiling point of the solution be 2.0 degrees C. (Kbp = 0.50 degrees C/mol)
Problem- What is the pH of a buffer that results when 12.0 g of HaH2PO4 and 8.00 g of Na2HPO4 are dilluted with water to a volume of .50L? (Ka of H2PO4^- = 6.2*10^-8, the molar masses of NaH2PO4 and Na2HPO4 are 120.0 g/mol and 142.0 g/mol, respect..
Assume that the buret represenst H+ ions, the flask represents OH- ions, and you are carrying out a titration of the base with the acid.
What is defined as the number of atoms surrounding an atom in a crystal lattice and indicate how tightly the atoms
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