Which of the following compounds will experience hydrogen bonding? (2 points) nh3 hbr c2h4 h2so4

The molecules are and .

Explanation:

Hydrogen bonding is defined as weak electrostatic force present between the hydrogen atom on one molecule with neighboring electro-negative atom of an other molecule. Usually oxygen nitrogen and fluorine atoms forms hydrogen bonding when present in a molecule of  a compound.

From the given compounds , compound with any atom out of oxygen nitrogen and fluorine will form hydrogen bonding with the hydrogen atom present in a molecule adjacent to them.

The molecules are and .

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"