Question

Calculeaza masa a molara clorului , azotului , a apei ,a clorurii de sodiu si a amoniacului.
1 mol= 6.022 x 10^23

Urgent!!

Answer 1

Răspuns:

Explicație:

MCl2 = 2 .35,5 = 71-------> 71g/moli

1mol Cl2----------71 g clor----------6,023.10²³molecule clor

MN2 = 2 . 14  = 28------> 28g/moli

1mol N2-----------28 g-----------6,023.10²³ molecule azot

MH2O =2 +16=18-------> 18g/moli

1mol H2O ---------18g---------6,023.10²³molecule H2O

MNaCl = 23 + 35,5= 58,5--------> 58,5g/moli

1mol NaCl ---------58,5g NaCl----------6,023.10²³molecule NaCl

MNH3 = 14 +3= 17------> 17g/moli

1mol NH3---------17g NH3---------6,023.10²³molecule NH3