Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
using 250 ml of 0250 m solution of cocl2 and distilled water how would you prepare 100 ml of 0005m solution of cocl2
a pure titanium cube has an edge length of 271in how many titanium atoms does it contain titanium has a density of 450
two acid-base reactions are given below of the three reaction arrows presented in each reaction select the arrow via
what volume of a 01 m clo- solution reacts stoichiometrically with a 10 ml solution of 02 m cro2- use the reaction 2
to identify a diatomic gas x2 a researcher carried out the following experiment she weighed an empty 48- bulb then
1285g sample of na2so4 is exposed to the atmosphere and found to gain 0393g in mass what is the percent by mass of
065 of sodium hydroxide naoh pellets are dissolved in water to make 25l of solution what is the ph of this
the enthalpy of activation of a first order reaction is 123kjmol the rate constant at 80 c is 173x10-2 s-1 what is the
liquid butane c4h10 the fuel used in many disposable lighters has delta hfinal-1475 kj and a density of 0579 gml use
describe the difference between the following and list any particular advantage possessed by one over the other
how many grams of aspirin were lost in the washing process you used to purify your product assume you used 50 ml of
in general chemistry lab 2 devising a reduction potential table why was it necessary to do step 3 of the laboratory
how much heat is required to boil 485g of water at its boiling point express your answer numerically in kilojoules
you are titrating 1000 ml of 00200 m fe3 in 1 m hclo4 with 0100 m cu to give fe2 and cu2 using pt and saturated ag
assume that a particular reaction evolves 224kj of heat and that 24kj of work is gained by the system what are values
many household cleaning products contain oxalic acid h2x2o4 a diprotic acid with the following dissociation constants
gold is a face-centered cubic structure that has a unit cell edge length of 408angstroms there are four gold atoms per
045 g of hydrogen chloride hcl is dissolved in water to make 45 l of solution what is theph of the resulting
if ph 64 calculate the molar concentration of h aq in the solution if ph 64 calculate the molar concentration of
how much heat is required to raise the temperature of 485g of water from its melting point to its boiling point express
if this arsenic is present as arsenate aso43- what mass of sodium arsenate would be present in a 110l sample of
the ph of a 0175 m aqueous solution of a weak acid is 352 what is ka for this acid
calculate the pressure of a sample of hydrogen gas collected over water at 247c when the barometric pressure is 7298
how much heat is required to melt 485g of ice at its melting point express your answer numerically in
2al 6hbr 2albr3 3h2 if 427 g of al reacts calculate the amount of hydrogen