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identify the lattice type and all symmetry operations that are indicated by the space group symbol for the orthorhombic
on a clear day at sea level with a temperature of 25 degrees celsius the partial pressure of n2 in air is 078 atm and
a compound that is composed of only phosphorous and sulfur has a molecular weight of 22227 gmol if the compound is 7213
when 001 m fe2 solution and 010 m fe2 solution are separated by porous disk in the same beaker calculate the cell
the stable allotropic form of phosphorus is p4 in which each p atom is bonded to three other p atoms draw a lewis
imagine that you have discovered a plant a that produces electricity in order to harness this plant to do work you need
how many electrons protons and neutrons respectively are in the ironiii ion iron- 56 with a 3 charge26 26 5626 26 2626
how many grams of the excess reagent are left over after the reaction of 436 g of al and 850 g hcl in the following
how much dopant is present in 175kg of semiconductor with a dopant concentration of 400ppm by massan atom of a
there are about 1200000 automobiles registered in pine bluff ar each automobile emits 31 g no2 and 16 g ch4 per vehicle
what is the mole ratio of ch3coona to ch3cooh ka 18times10-5 would be in a buffer solution at ph
if 103 ml of 0100 n naoh is used to bring 100 ml of juice to a ph of 820 what is the titratable acidity gl tartaric
draw a three dimensional structures of pcl3 and pcl5 and then explain why one of the molecules has a dipole moment and
which of the following statements best describes the charges on amino acids at neutral ph around 7a each amino acid
which of the following functional groups does not occur in ser one of the 20 genetically encoded amino acidsa alcoholb
one possible use for the cooking fat left over after making french fries is to burn it as fuelformula c51h88o6density
calculate delta hdegree in kilojoules per mole for benzenec6h6 from the following data 2c6h6l15o2g----gt12co2g6h2ol
compound a had ir peaks at 3060 3000-2850 2750 1715 cm-1 it reacted with bh4- then h to form compound b which had 1h
draw the mechanisms and products for the synthesis of vitamin d from 7-dehydrocholesterol draw all of the orbitals
give the stereochemistry chirality of the product when z-3-methyl-3-hexene is treated with bh3thf followed by basic
when 0187g of benzene c6h6 is burned in a bomb calorimeter the surrounding water bath rises in temperature by 748
a special gas mixture used in bacterial growth chambers contains 100 by weight co2 and 990 o2 what is the partial
how much energy in kilojoules is released when 128 g of steam at 1245 degree celcius is condensed to give liquid water
a layer of chromium is electroplated on an automobile bumper by passing a constant current of 2000a through a cell that
determine the osmotic pressure in atm of a non-volatile solution with a concentration of 0710 m at a temperature of 342