What is the name of NaHCO3, uh I looked it up but id. k if I should put Sodium hydrogen carbonate or Sodium bicarbonate...help

Look at the reaction below: ca(hco3)2 --> caco3 + co2 + h2o first, balance the reaction. once balanced, use dimensional analysis or another method to find out how many moles of carbon dioxide will be produced if we start with 16.5 moles of calcium bicarbonate (calcium hydrogen carbonate). = mol of co2 number needs to be reported to three significant figures.

Ineed ! i have no clue how to do this problem.

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5