When observing your plaque count results, suppose that you count 89 plaques on the plate prepared using the phage suspension with 1000 total dilution factor. how would you calculate the concentration (pfu/ml) of the original phage suspension? (refer to the lab manual to recall the procedure you used to prepare your plaque count plates.) show your work.

Which of these conditions most likely produces an unstable isotope?

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

What is the percentage composition of carbon in the compound ch4