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problem- for the following chemical reaction how many moles of silver chromate will be produced from 108 g of silver
problem- 2c2h6g 702g -gt 4co2g 6h2ol how many moles of co2 are produced when 510 mol of ethane are burned in an
problem- a certain substance has a heat of vaporization of 6972 kjmol at what kelvin temperature will the vapor
problem- a well insulated storage tank of 60 m3 contains 200 l of liquid water at 75 c the rest of the tank contains
problem- melting point alone cannot be used to unambiguously identify an unknown substance why not what else do you
problem- why are acetyl chloride or acetic anhydride used instead of acetic acid in preparing esters of acetic
problem- acetic acid has a density 105 gcm3 and mass percentage 99 calculate the molarity molality and mole fraction
problem- in a sample of three helium atoms the kinetic energies of the atoms were 13 25 and 31 in units of 10e-21 j
problem- all of the lanthanide metals la through lu elements 57 through 71 reacts with hcl to form compounds having
problem- consider a random mixture containing particles of na2so4 and k2so4 there are 1331 g of na2so4 density 2627 gml
problem- where would h fit in the activity series you developed in quest 2 can you conclusively determine its position
problem- a sketch a graph of the van deemter equation plate height vs linear flow rate what would the curve look like
problem- arrange cu ag pb zn and mg in order of their activities listing the most active first explain how you
problem- 1 determine the activation energy ea in kjmol of a reaction for which the rate triples upon a temperature
problem- part 1- determine the potential v by which a proton must be accelerated so as to assume a particle wavelength
problem- a solution of sugar is in equilibrium with solid sugar if more solid sugar is added to this mixture what would
problem- a b c d are all pure crystalline compounds with melting points of 110c - 111c a mixture of compounds a and c
problem- the concentration of a biomolecule inside a rod-shaped prokaryotic cell is 00031 m calculate the number of
problem- aspirin is made commercially by adding acetic anhydride to an aqueous solution of salicylic acid if 200 g of
problem- using curved arrow formalism show the homolytic cleavage of the o-o bond in dimethyl peroxide draw the
problem- the resolution for two compounds in a chromatogram was measured to be r 0928 the retention times for each
problem- the male sex hormone testosterone contains only c h and o and has a mass of 2882089 amu as determined by
problem- calcium a atomic number is 20 it forms ions w 18 electrons what is the electrical charge of a calcium ioni
problem- a calculate the work that must be done at 29815 k and 100 bar against the atmosphere for the production of co2