You are to make 100.0ml of a 0.50 m acetate buffer (pka = 4.72) at ph 5.00 using 0.50 m stocks of acetic acid and sodium acetate. 6. using henderson-hasselbalch and the information given, calculate the value of [a-]/[ha].

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

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.