The student filters and dries the precipitate of CaCO3 (molar mass 100.1g/mol ) and records the data in the table below. Volume of Na2CO3 solution

50.0 mL

Volume of 1.0MCa(NO3)2 added

100.0 mL

Mass of CaCO3 precipitate collected

0.93 g

c) Determine the number of moles of Na2CO3 in the original 50.0mL of solution.

Ithink its answer a)

  consider  the  following scenario,  then describe  how  you might conduct  a  study using  ansrs,  convenience sample, and a  voluntary response sample.  you  are  interested  in  parents'  opinion  of the  war  in  iraq.  your population  is  parents  of  high school students.  your question  is, "do you  believe that the  war  in 

Answerentrepreneurs;

Answerpeople,vehicles,roadways.;