New Concepts/Shortcuts 18 Flashcards
B2H6 can be synthesized BF3 and NaBH4
true or false
velocity gradient formula
source of
zymase
diastase
urease
pepsin
whats the CN of ZnS
4
first write the PQ equation with the direction vectors being same as given the line to be measure along
and point being the point P
then find the point in plane of that line and find PQ
biuret test isn’t given by
dipeptides and free amino acids do not give biuret test.
which vitamin contains cobalt
Vitamin B12
standard reduction potential for
Cl2 I2 Ag NA Li
average power in ac circuit cannot/can be zero.
average power in ac circuit can be zero.
what forms glucose on heating with acid?
cellulose
how is cane sugar converted to glucose and fructose
by adding invertase
how is glucose converted to ethyl alcohol
by adding zymase
how is starch converted to maltose?
how is maltose converted to sugar?
the urea decomposition reaction and what’s the catalyst?
what work does the pepsin enzyme do and what does pancreatic trypsin do?
the pepsin enzyme converts proteins into peptides while in the intestine, the pancreatic trypsin converts proteins into amino acids by hydrolysis.
eg of non polar molecular solids?
argon heluim H2 Cl2 I2
how are the molecules and atoms held in the solid form of H2/Cl2/I2
weak dispersion forces or London forces
eg of polar molecular solids
HCl
SO2
how are the molecules held in nonpolar molecular solids
they are held together by relatively stronger dipole-dipole interactions
why do metals have lustre and color in them!?
because of free electrons in them
whats giant molecules?
A wide variety of crystalline solids of non-metals result from the formation of covalent bonds between adjacent atoms throughout the crystal. They are also called giant molecules
What’s used in rat poison?
sodium fluoride is used in rat poison
What’s in bronze?
Cu and Sn(TIn)
What’s in brass?
Copper and zinc
what does a commercial bleaching solution contain?
sodium hypochlorite
What’s used in cars for cooling engines as an antifreeze?
ethylene glycol, an antifreeze, is used in cars for cooling the engine
What’s used in cars for cooling engines as an antifreeze?
ethylene glycol, an antifreeze, is used in cars for cooling the engine
napthalene and anthracene dissolve readily in _________
naphthalene and anthracene dissolve readily in benzene but sodium chloride and sugar do not.
polar solvents and non polar solutes dissolved in ______
polar solutes dissolve in polar solvents and non-polar solutes in nonpolar solvents.
whats crystallization?
Some solute particles in the solution collide with the solid solute particles and get separated out from the solution. This process is known as crystallisation
number of solute particles going into solution_____
a number of solute particles going into the solution will be equal to the solute particles separating out and a state of dynamic equilibrium is reached.
solubility of gases in liquids is greatly affected by?
Solubility of gases in liquids is greatly affected by pressure and and temperature
solubility of solid in liquid depends on?
temperature
What’s the effect of pressure on the solubility of a solid in a liquid?
Pressure does not have any significant effect on the solubility of solids in liquids. It is so because solids and liquids are highly incompressible and practically remain unaffected by changes in pressure.
What’s present in the tanks of scuba divers?
the tanks used by scuba divers are filled with air diluted with helium (11.7% helium, 56.2% nitrogen, and 32.1% oxygen).
What’s the effect of temperature on the solubility of gases in liquids ?!
Solubility of gases in liquids decreases with rise in temperature. When dissolved, the gas molecules are present in liquid phase and the process of dissolution can be considered similar to condensation and heat is evolved in this process
dissolution is an exothermic process or an endothermic?
As dissolution is an exothermic process, the solubility should decrease with increase of temperature
What’s the scene of vapor phase in equilibrium?!
at equilibrium vapor phase will be always rich in the component which is more volatile
vapor phase mole fraction formula?
