500. mL of a solution containing 1.5 M NH4Cl(aq) is mixed with 500. mL of a solution containing 0.50M of NaOH(aq). What is the pH of the final solution

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.