* WHICH OF THE FOLLOWING AQUEOUS SOLUTIONS HAS THE HIGHEST OSMOTIC PRESSURE AT 25°C? * 0.2 M KBr * 0.2 M ethanol * 0.2 M Na2SO4 * 0.2 M KCl Read more

* AN AQUEOUS SOLUTION OF ETHANOL, C2H5OH, IS 19.00% ETHANOL BY MASS AND HAS A DENSITY OF 0.9700 G ML-1. CALCULATE THE MOLARITY OF THE ETHANOL SOLUTION.AN AQUEOUS SOLUTION OF ETHANOL, C2H5OH, IS 19.00% ETHANOL BY MASS AND HAS A DENSITY OF 0.9700 G ML-1. CALCULATE THE MOLARITY OF THE ETHANOL SOLUTION.AN AQUEOUS SOLUTION OF ETHANOL, C2H5OH, IS 19.00% ETHANOL ... Read more

* WHICH ONE OF THE FOLLOWING MOLECULES IS LINEAR? * BF3 * CO2 CO2 * H2S * SO2 Read more

* FLUORINE MOLECULE F2 HAS .........: FLUORINE MOLECULE F2 HAS .........: FLUORINE MOLECULE F2 HAS .........: * 6 lone pairs of electrons. * 4 lone pairs of electrons. * 8 lone electrons. * Answers (b) and (c). Read more

Write a short notes on melting and boiling points expriment? Read more

Calculate the mole fraction of C2H5OH in a solution that contains 46 grams of ethanol, C2H5OH, and 64 grams of methanol, CH3OH.( a) 1/3 (b) 0.42 (c) 1/2 (d) 2/3 (e) none of these Read more

Calculate the MOLALITY of a solution that contains 51.2 g of naphthalene, C10H8, in 500 mL of carbon tetrachloride. The density of CCl4 is 1.60 g/mL. (a) 0.250 m (b) 0.500 m (c) 0.750 m (d) 0.840 m (e) 1.69 m Read more

According to the Lewis theory, a base _____ . (a) is a proton acceptor. (b) is a proton donor. (c) makes available a share in a pair of electrons. (d) produces OH- ions in aqueous solution. (e) accepts a share in a pair of electrons. Read more

For the system shown here: HOBr + OH- H2O + OBr- Bronsted would classify the base species as: (a) OH- and HOBr (b) H2O and OH- (c) OBr- and OH- (d) OBr- and HOBr (e) H2O and HOBr Read more

In the equation: HF + H2O H3O+ + F- (a) H2O is a base and HF is its conjugate acid. (b) H2O is an acid and HF is the conjugate base. (c) HF is an acid and F- is its conjugate base. (d) HF is a base and H3O+ is its conjugate acid. (e) HF is a base and F- ... Read more