Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
if caffeine is soluble in methanol as well as methylene chloride then why couldnt i use methanol to extract caffeine
calculate w in kj when 557 g iron iii oxide mm 1597 gmol reacts with excess carbon to produce carbon dioxide gas at
the following compound can be used to make an addition polymer show the general structure of the polymer that it will
a 0995g unknown mixture containing calcuim chloride reacts to give 0505g ppt of calcium phosphate what is the mass of
dihydroxybenzene and o-dihydroxybenzene can be separated by tlc using silica gel and a solvent of medium polarity the
at a temperature of 500 degrees celsius the equilibrium constant kc for the following nitrogen fixation reaction
1 using propanal as your only source of carbon synthesize 3-hexene mixture of cis and trans isomers2 5-hydroxypental
an unknown alcohol of molecular formula c4h10o forms only one alkene when treated with sulfuric acid no reaction is
for the reaction rm a b c rightarrow d e the initial reaction rate was measured for various initial concentrations
1 a sample of pure r enatiomer of 3-phenyl-2-butanone racemizes when catalytic amounts of acid are presenthow would you
if one needed to predict the temperature change when a series of metals with equal mass are heated which of the
which answer lists all of the following responses that are endothermic and none that are exothermic1 boiling water2
calculate the changes in the co and cl2 concentrations that occur if the concentration of cocl2 decreases by 0103 moll
taylor and crist journal of the american chemical society 63 1381 1941 studied the reaction between hydrogen and iodine
compare the molar enthalpies of neutralization of hydrochloric acid sulfuric acid and phosphoric acid discuss the
in a calorimetry experiment 0497 g of potassium hydroxide are dissolved in 25o ml of water density 100 gml specific
calculate the concentration of al3 in a saturated aqueous solution of aloh3 ksp 21 times
how do you calculate molar enthalpy of combustion for example if a question was simply what is the molar enthalpy of
benzyl alcohol although a primary alcohol reacts very rapidly in the presence of hcl forming benzyl chloride why is
if the 390 m solution from part a boils at 10345 circ rm c what is the actual value of the vant hoff factor i the
you require 3678 ml of 00105 m hcl to reach the equivalence point in the titration of 250 ml of aqueous ammoniaa what
a student added 500 ml of cold water to 50 ml of heated distilled water in a styrofoam cup the initial temperature of
what is the maximum number of hybridized orbitals that can be formed by a nitrogen atom i know the answer is 4 but i
a compound with the formula c15h14o has a strong peak near 1720 cm-1 in the ir the 1h-nmr spectrum shows a 3h singlet
draw the structures of products a and b of the following series of reactions only draw majow productsethyl benzene