Which of the following summarizes how increases in pressure tend to affect the solubility of gases and solids in liquids? A. It will leave the solubility of the gas unchanged and decrease the solubility of the solid. B. It will increase the solubility of the gas and reduce the solubility of the solid. C. It will increase the solubility of the gas and leave the solubility of the solid unchanged. D.It will reduce the solubility of the gas and increase the solubility of the solid.

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