Comparing Covalent and Ionic Bonds Essay

1262 WordsFeb 15, 20136 Pages
IB CHEMISTRY IA – COMPARING COVALENT AND IONIC SOLIDS Data Processing : Table 1 – Comparing Solubility of Covalent and Ionic solids Type of Solid | Name of Solid | Solubility | Ionic | Calcium chloride | S | | Potassium nitrate | S | | Sodium hydroxide | S | | Sodium Bicarbonate | PS | | Unknown B | S | Covalent | Paradichlorobenzene | NS | | Absorbic Acid | S | | Dextrose | S | | Unknown A | PS | Table 2 – Comparing Melting Times of Covalent and Ionic Solids Type of Solid | Name of Solid | Melting Time ( 0.0050 s) | Percentage Error (see calculations below) | Ionic | Calcium chloride | 39.69 | ±0.013% | | Potassium nitrate | 25.09 | ±0.199% | | Sodium Hydroxide | 10.75 | ±0.465% | | Sodium Bicarbonate | 45.62 | ±0.011% | | Unknown B | 57.50 | ±0.009% | Covalent | Paradichlorobenzene | 7.150 | ±0.070% | | Absorbic Acid | 8.440 | ±0.059% | | Dextrose | 5.990 | ±0.083% | | Unknown A | 10.03 | ±0.050% | Percentage Error Calculations for Melting Times Calcium chloride – ( 0.005 39.69) x 100 = 0.013% Potassium nitrate – (0.005 25.09) x 100 = 0.199% Sodium Hydroxide – (0.005 10.75) x100 = 0.465% Sodium Bicarbonate – (0.005 45.62) x 100 = 0.011% Unknown B – (0.005 57.50) x 100 = 0.009% Paradichlorobenzene – (0.005 7.15) x 100 = 0.070% Absorbic Acid – (0.005 8.44) x 100 = 0.059% Dextrose – (0.005 5.99) x 100 = 0.083% Unknown A – (0.005 10.03) x 100 = 0.050% Key: Covalent Ionic Table 3 – Comparing Electrical Conductivity of Covalent and Ionic solids Type of Solid | Name of solid | Electrical Conductivity (S/cm) ± 10% | Error (Uncertainty) | Ionic | Calcium chloride | 1000 GC | ±100.0 | | Potassium nitrate | 1000 GC | ±100.0 | | Sodium Hydroxide | 1000 GC | ±100.0 | | Sodium Bicarbonate | 1000 GC | ±100.0 | | Unknown B | 1000 GC | ±100.0 | Covalent |

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