The beakers below depict the aqueous dissociations of weak acids HA (light blue and green) and HB (light blue and yellow); solvent molecules are omitted for clarity. If the HA solution is 0.50 L, the HB solution is 0.25 L, and each particle represents 0.060 mol, find the Ka of each acid.

If a || b and e || f, what is the value of y ?

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol