Complex formation is frequently used in both qualitative quantitative inorganic analysis. Introduce topics such as metal-ligand interactions in this activity using complexometric titration to determine the calcium content of both known and unknown samples. Kit contains enough materials for 15 groups. Teacher's Manual and Student Study Guide copymasters are included. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B; PS2.B Performance Expectations: HS-PS1-3; HS-PS2-6; HS-PS1-2; HS-PS1-7 Cross Cutting Concepts: Patterns; Energy and Matter; Structure and Function Engineering Practices: Planning and Carrying Out Investigations; Constructing Explanations and Designing Solutions; Using Mathematics and computational Thinking; Obtaining, Evaluating, and Communicating Information Kit Includes: 4 EDTA 0.1 M Titrant Solution, 500 mL 3 Eriochrome Black T Indicator Solution, 60 mL Calcium Chloride 0.1 M Solution, 500 mL Unknown Calcium Solution #1, 500 mL Unknown Calcium Solution #2, 500 mL 3 pH10 Buffer, 500 mL DOT Info: Small quantity exemption 173.4. THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only. *"Next Generation Science Standards" is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product. WARNING: This product can expose you to chemicals including Methanol, Methyl Isobutyl Ketone, and strong inorganic mists containing Sulfuric Acid, which are known to the state of California to cause cancer and birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov