Estimate the vapor pressure of ethanol at temperatures of t = 0, 50, 100 and 150 c using the following methods: a. the antoine equation b. the clausius – clapeyron equation with dhvap = 42 kj/mol at the normal boiling point of t= 351.5 k c. the shortcut equation d. for each temperature, identify the estimate you consider the most accurate, and explain why?

10. translate each of the following chemical equations into a sentence. a. 2 zns(s) + 3 o2(g) -> 2 zno(s) + 2 so2(g) b. cah2(s) + 2 h2o(l) -> ca(oh)2 (aq) + 2 h2(g)

What is the molar mass of ca(cio4)2

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.