Determine the volume in ml of 0.33 m hi(aq) needed to reach the half-equivalence (stoichiometric) point in the titration of 30.5 ml of 0.48 m (ch3)2nh(aq). enter your answer with one decimal place. the kb of dimethylamine is 5.4 x 10-4.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =