How many moles of NaOH are needed to react with 71.72 moles H2SO4?

Drive down any three characteristic of modern periodic table

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm