You need 1.50 moles of ammonia (nh3) for a reaction at stp. what volume of ammonia must you measure? also, how many molecules of nacl are in 23.40 grams nacl?

what volume of ammonia must you measure? 

1.50 moles NH3 ( 22.4 L / 1 mole ) = 33.6 L NH3 should be measured

how many molecules of nacl are in 23.40 grams nacl

23.40 g NaCl ( 1 mol / 58.44 g) (6.022 x 10^23 molecules / 1 mol ) = 2.4113 x 10^23 molecules

Hope these answer the questions. Have a nice day.

What? i don’t understand

Contained in chromosomes which are located in the nucleus of the cell.