1. Which graph had the steepest slope? The smallest? 2. Given the equation for the dissociation of Li,CO, below, write t

[answerhappygod]

1 Which Graph Had The Steepest Slope The Smallest 2 Given The Equation For The Dissociation Of Li Co Below Write T 1 (55.74 KiB) Viewed 39 times

1. Which graph had the steepest slope? The smallest? 2. Given the equation for the dissociation of Li,CO, below, write the equation for the dissociation of the ionic compounds in this lab. (Don't worry about subscripts & superscripts) Li,CO, > 2Li +CO,? 11 12 Answer: a) KNO, -> b) K2SO2 -> c)CaCl2 --> 3. Since all solutions had the same concentration, what accounts for the difference in the slope of the three plots? Explain. Answer: 4. If you repeated this experiment with MgSO4, would you expect the slope of the line to be close to that of potassium nitrate or potassium sulfate? Explain. Answer: 5. In another conductiviy lab of solution, NaOH conducts electricity but sugar does not. Explain. (Hint: what's different about these two molecules chemically?) Answer:

lonic Compound: Potassium nitrate Concentration (M) Conductivity (ms) 0.0001 0.0157 0.001 0.1445 0.01 1.378 0.1 12.4 Conductivity of KNO3 14 y = 123.56x + 0.0527.. 12 10 Conductivity (ms) 2 0 0 0.02 0.04 0.06 0.08 0.1 0.12 Concentration (M) ......... Linear (Concentration (M))

Ionic Compound: Potassium sulfate Concentration (M) Conductivity (ms) 0.0001 0.0317 0.001 0.2955 0.01 2.6 0.1 20 Conductivity of K2504 25 20 y = 198.07x+0.2304 15 Conductivity (ms) 5 0 0.02 0.04 0.06 0.08 0.1 0.12 ntration (M) .......... Linear (Concentration (M))

Ionic Compound: Calcium chloride Concentration (M) Conductivity (ms) 0.0001 0.0281 0.001 0.2603 0.01 2.4 0.1 19.3 Conductivity of CaCl2 25 20 y = 191.52x + 0.1777... 15 Conductivity (ms) 5 0 0.02 0.04 0.06 0.08 0.1 0.12 IN Concentration (M) ......... Linear (Concentration (M))

Slope of lonic Compound Trendlines Ionic Compound Slope Potassium nitrate 123.56 Potassium sulfate 198.07 Calcium chloride 191.52