Consider the reaction between sodium hydroxide and acetic acid: NaOH(aq) HC2H3 02 (9) H2O(0) Nac2 H3 02 (aq)
)
A 25,0 mL sample of acetic acid (HC2H302) of unknown molarity is titrated with 12.1ml. of 0.65 M NaOH. What is the molarity of the acetic acid solution?
9

Which of these best describes an ionic bond?

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o

T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s