1. Home
  2. Educational Materials
  3. Chemistry Educational Materials
  4. Properties of Matter Learning Activities in Chemistry
  5. Determination of the Hardness of Water
Print…
Elements, compounds and mixtur
Elements, compounds and mixtur

Determination of the Hardness of Water
Ratings: (No Reviews)

Total Ratings: 0
Avg. Ratings: 0.0 out of 5

IS8020
470163-106KT 33.6 USD
470163-106
Determination of the Hardness of Water
Educational Materials Chemistry Educational Materials Properties of Matter Learning Activities in Chemistry
What Ions Are Present In Water?

  • Classic AP Chemistry Experiment
  • Instructions Included
In this experiment the indicator eriochrome black T (EBT) is used to signal the presence of ions in the water sample. EBT binds with free metal ions in the water to form a pink complex. EDTA has a stronger affinity for the metal ions than EBT so when EDTA is added it replaces the EBT and the EBT returns to its blue, uncomplexed color. The blue color is used as the end point in the titration. A sample of tap water is treated with EBT indicator. If the indicator turns from blue to pink, metal ions such as calcium and magnesium are present. To determine the concentration of ions present, the sample is titrated with a known molar concentration of EDTA.

Includes:
EDTA Solution
Buffer Solution
EBT Solution (Eriochrome Black)
   
 

ORDER

WRITE A REVIEW

REVIEWS (0)

Q and A

Product Questions and Answers

 
Review & Compare Alternatives

We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

???store.costSavingAlternatives.viewingCostSavingAlternative.modelPage. savingsCalculated???

Original Product:
Description Catalog Number Availability Unit Your Price Price Per Qty