To learn how to calculate ion concentrations in an aqueous solution of a strong diprotic acid.

sulfuric acid, h2so4, is a strong acid. its complete dissociation in aqueous solution is represented as

h2so4→h++hso4−

a hso4− anion can dissociate further by

hso4−⇌h++so42−

but the extent of dissociation is considerably less than 100%. the equilibrium constant for the second dissociation step is expressed as

ka2=[h+][so42−][hso4−]=0.012

part a

calculate the concentration of h+ ions in a 0.010 mol l−1 aqueous solution of sulfuric acid.

express your answer to three decimal places and include the appropriate units.

[h+] =

Which statement justifies that phosphine (ph3) is a polar molecule?

In any energy conversion, some of the energy is lost to the environment as question 5 options: electrical energy potential energy sound energy thermal energy

Microtubular fibers that assist in the movement of chromosomes during nuclear division in conjunction with proteins, makes up the small and large organelle pieces that assemble prior to translation three-base nucleotide sequence that can complementarily pair with the functional transcript, allowing a particular material to be brought to a ribosome particular time in the cell cycle when the cell’s systems determine if the cellular conditions are appropriate to continue through the cycle time in the cell’s cycle when proteins are made and organelles are duplicated enzyme that allows proper nucleotide bonding during transcription specific dna sequence which will initiate gene transcription division of the cell’s cytoplasm specific bond that forms between two amino acids when a carboxyl group binds to a amino group three-base sequence that does not code for a particular amino acid a paired organelle which facilitates the formation of movement microtubules time in the cell’s cycle when the microtubular structures exert an equal pressure on the cell’s genetic material