4. A sodium hydroxide solution was standardized by titrating 25.00mL of 0.1528 M standard hydrochloric acid. The initial burette reading of the sodium hydroxide was 2.24 mL, and the final
reading upon reaching the endpoint was 39.21 mL. What is the molarity of the sodium hydroxide
solution?
Balanced Molecular Equation:
Calculation:

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.