When calcium nitrate, Ca(NO32, dissolves in water, it dissociates into its ions. We can represent that...
4. Complete the diagram below to show calcium and chloride ions being surrounded by water when CaCl2 dissolves and dissociates. Include at least 3 water molecules around each ion. Ca2 Cl Cl 4. Complete the diagram below to show calcium and chloride ions being surrounded by water when CaCl2 dissolves and dissociates. Include at least 3 water molecules around each ion. Ca2 Cl Cl
When a 5.12-g sample of solid sodium nitrate dissolves in 31.1 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 25.00 oC to 16.37 oC. Calculate H in kJ/mol NaNO3 for the solution process. NaNO3(s) Na+(aq) + NO3-(aq) The specific heat of water is 4.18 J/g-K. We were unable to transcribe this imageWe were unable to transcribe this imagethermometer stirrer coffee cups containing reaction mixture When a 5.12-g sample of solid sodium nitrate dissolves in...
When a 6.07-g sample of solid lead(II) nitrate dissolves in 31.9 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 22.00 oC to 18.47 oC. Calculate H in kJ/mol Pb(NO3)2 for the solution process. Pb(NO3)2(s) Pb2+(aq) + 2 NO3-(aq) The specific heat of water is 4.18 J/g-K. Hsolution = ?kJ/mol Pb(NO3)2.
When a 5.26-g sample of solid ammonium nitrate dissolves in 52.5 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 24.00 oC to 17.20 oC. Calculate H in kJ/mol NH4NO3 for the solution process. NH4NO3(s) NH4+(aq) + NO3-(aq) The specific heat of water is 4.18 J/g-K. Hsolution = _________kJ/mol NH4NO3.
How many total moles of ions are released when the following sample dissolves completely in water: 5.15x10^-3 g Ca(NO3)2
5) The molecular complex Cd(CN)42- dissociates in water by the process Ca(CN): (aq) = Cd?" (aq) + 4 CN Kc -1.3 x 10-17 The initial concentration of Ca(CN).?- in an aqueous solution is 0.0360 M. No Cd2+ or CN ions are initially present What is the concentration of Cdion present when equilibrium is achieved? [12 points)
When 23.6 g of calcium chloride, CaCl2, was dissolved in water in a constant-pressure calorimeter, the temperature rose from 25.0 C to 38.7 C. If the heat capacity of the solution and the calorimeter is 1258 J/C, what is the enthalpy change when 0.710 mol of calcium chloride dissolves in water? The solution process is CaCl2(s) --> Ca2+(aq) + 2Cl–(aq)
the molecular complex Cd(CN)2-4 dissociates in water 5) The molecular complex Cd(CN).- dissociates in water by the process Cd(CN) ? (aq) 5 C&'(aq) + 4 CN Kc = 1.3 x 10-17 The initial concentration of Ca(CN)6?- in an aqueous solution is 0.0360 M. No cd or CN ions are initially present. What is the concentration of Cd²+ ion present when equilibrium is achieved? (12 points)
When a 4.25 g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperature drops from 22.0 degrees C to 16.9 degrees C. Calculate Delta H kJ/mol NH4NO3 for the solution process NH4NO3 ( s) yields NH4 (there is a plus sign above the four)(aq) + ^ + NO3(negative sign above the three) (aq) Assume that the specific heat of the solution is the same as that of pure water. Express your answer...
When solutions of silver nitrate and calcium chloride are mixed, silver chloride precipitates out of solution according to the equation 2AgNO3(aq)+CaCl2(aq)→2AgCl(s)+Ca(NO3)2(aq) Part A: What mass of silver chloride can be produced from 1.07 L of a 0.225 M solution of silver nitrate? Part B: The reaction described in Part A required 3.13 L of calcium chloride. What is the concentration of this calcium chloride solution?