If the vapor pressure of water is not taken into account when collecting a gas by water displacement, how would the value for your calculation of the ideal gas law constant , r, be affected? (increase, decrease or remain the same) explain your answer.

As we know that

PT = Pgas + PH2O                                                                                           and also

PV= nRT

so the R will be constant

where 

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.