# total charge of e in a given volume of water

by Bailey
Tags: charge, volume, water
 P: 43 this is killing me. the question ask for total charge ina given volume of water. -first convert the volume to m^3 from cm^3 since i know the density of water at 4 degree cel (most dense) is 1000kg/m^3. -then imultiply the m^3 by 1000kg/m^3. then convert it to grams. - divide by 18 grams (mass of H2O). which will gives us # of moloe of H2O. then multiply by 6.02*10^23 to get the amount of molec of H2O. -Multiply by 10 electron (since each H2O have 10 e total). -then lastly multiply it by 1.6*10^-19 C (charge of an electron) but still i keep gettign the wrong answer. anyone know why?
 P: 611 are you asking the number of e or charge of total e? your reasoning is completely fine...gimme the origina question and the model answer... your hw might asking you a completely different thing...
 P: 43 here the original question: What is the total charge on all the electrons in 21.10cm3 of water?
P: 611

## total charge of e in a given volume of water

 P: 43 i got 1128126.79 C