Calculate the vapor pressure of water above a solution prepared by dissolving 28.5g of glycerin (c3h2o3) in 125g of water at 343k. (the vapor pressure of water is 233.7 tor). (b) calculate the mass of ethylene glycol (c2h602) that must be added to 1.00 kg of ethanol (c2hoh) to reduce its vapor pressure by 10.0 torr at 35 °c. the vapor pressure of pure ethanol at 35°c is 1.00*102 torr.

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)