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a student ran two separate substitution reactions reaction a and reaction b in lab that utilized an alkyl halide and a
enthalpy change of solution how can chemists use the properties of a solute to predict if an enthalpy change of
can someone summarize plate tectonics for me for example the theory how it came to be and so
please explain r and s configurations when dealing with rings and branched configurations please give examples like two
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how many moles of gas are present in 113 l of gas at 209 atm and 291 kwhat is the volume in l of 359 g co2 of gas at
1 what is the standard free energy change for the reaction h2 2 agaq rarr 2 haq 2 ags the standard potentials are 2 h
what is the temperature in oc of 0742 mole of gas at 209 atm and that occupies 987
why do we think that a saturated solution of calcium hydroxide must be made fresh on the day it is to be used while
anbspballoon of gas has anbsp pressure of 770 torr temperature ofnbsp21oc and volume ofnbsp250 nbspmlnbsp if the
what is the density of hydrogen at 0 degrees c and 792
an acetic acid buffer solution is required to have a ph of 527 you have a solution that contains 001 mol of acetic acid
a rigid container of gas has a pressure of 172 atm and temperature of 21oc if the temperature increases to 85oc what
a student used 715 g of cacl2 and 925 g of k2 co3 to make caco3the actual yield was 615 g of caco3 calculate the
what is the volume in l of 00589 mole of gas at 722 torr and
draw and name all of the structural isomers that are ketones with five carbon atoms in its longest chain and the
why is it important to use a large excess of sodium borohydride when doing a reduction in aqueous ethanol hint consider
what is the law of conservation of energy give a specific example discuss this in terms of a chemical
define kinetic and potential energy what is the difference please give specific examples discuss how these play a role
what will happen when some solid radioactive nacl is added to a beaker containing a nonradioactive satuarted solution
what is true about a sample of 02 compared to a sample of h2 if both are at t 25c m molecular mass v ave velocitya vh2
what would be the expected order of elution of an acid amide and amine which one would require the more polar solvent
hydrogen cyanide and organic nitriles which contain the cyano group can be catalytically reduced with hydrogen to form
thenbspkspnbspnbspofnbspnbspfeoh3nbspnbspisnbspnbsp28nbspnbspxnbspnbsp10-shy-39nbspnbspandnbspnbspthenbspnbspkspnbspnbsp
consider a buffer solution that contains 035 m nahco3 and 025 m na2co3 pkahco3-shy-1033a calculate its phb calculate