A 5.00 mL volume containing 0.6113 mg of cyclohexene/mL is to be titrated with Br2 generated by electrolytic oxidation of Br Br2 + cyclohexene -> trans 1,2 - Dibromocyclohexene From coulometric analysis a constant current of 4.825 mA was found. How much time is required for the complete titration? a. 1487.8 s b. 595.1 s c. 1219.6s d. 1350.7 s

What state of matter is ice a. liquid b. element c. solid d. gas

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]

Which of the following compounds would be expected to have the strongest ionic bonds? a)the compound that has b)the largest ions with the greatest charge c)the compound that has d)the largest ions with the least charge the compound that has the smallest ions with the greatest charge the compound that has the smallest ions with the least charge