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problem- a 1250 l weather balloon filled with 61 moles of helium as a small leak if the helium leaks at a rate of 10
problem- the haber-bosch process is a very important industrial process in the haber-bosch process hydrogen gas reacts
problem- a group of students performed a titration experiment they took 2500ml of solution of phosphoric acid of
problem- 012 g of compound y dissolves in 10 ml of acetone at 25 degrees c and 085 g of the same compound dissolves in
problem- the rate of hydrolysis of sucrose increases 41 times when the reaction temperature increases from 25 c to 35 c
problem- based on your energy determination of the first nut that you burned determine how many nuts an average man of
problem- how many total moles of ions are released when each of the following samples dissolves completely in watera
problem- complete and balance the equation for this reaction in basic solution phases are optional mno2 fe3 --gt mno4-
problem- name two organic compounds that cannot be extracted effectively from an aqueous solution by means of an
q1 discuss the various phases of matter and their physical and chemical changesq2 define atomic number mass number
1determine the mass of potassium chloride required to prepare a saturated solution in 500 ml of water at 40degca 40 gb
problem- you are the supervisor in a car assembly plant where each car produced requires one body and four wheels you
problem- if attractive interactions among the molecules of a gas are more important than repulsive interactions its
problem- how many grams of h2 are needed to react with 47 grams of o2 given the reaction 2 h2 g o2 g --gt 2 h2o
problem- sulfuric acid dissolves aluminum metal according to the following reaction 2als3h2so4aq-----al2so43aq3h2g
problem- which quantity or quantities must always be the same on both sides of a chemical equation check all that apply
problem- the acid dissociation constant for cinnamic acid hc9h7o2 is 363x10-5 what is the base dissociation constant
problem- the base dissociation constant for ch33n is 631x10-5 what is the ph of a solution initially containing 5250g
problem- a 1000-ml sample of 02 m ch33n kb 533 x 10-5 is titrated with 02 m hcl what is the ph at the equivalence
problem- aluminum reacts with chlorine gas to form aluminum chloride via the following reaction 2als3cl2g----2alcl3s
problem- show the full mechanism for adipoyl chloride with 16-hexanediamine to form nylon-66 show the addition of one
problem- draw the structure of the simple dipeptides gly-ala and ala-gly circle the peptide bond in each structureyou
problem- a 165-ml sample of tartaric acid is titrated to a phenolphthalein endpoint with 20 ml of 10 m naoh assuming