Given a 0.300 M solution of anserine at its isoelectric point and ready access to 0.100 M HCl, 0.100 M NaOH and distilled water, describe the preparation of 1 L of 0.0300 M anserine buffered solution, pH 7.20.Volume of stock solution needed =mLVolume of HCl needed to adjust the imidazole group =mLVolume of HCl needed to titrate the amino group =mLTotal HCl needed =mLPi8.27

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.