Calculate the normality of a solution containing 0.5g of NaOH dissolved in 250cm3 . 1
(eq. mass of NaOH = 40)

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .