Making a primary standard
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Slide 1 - Micro learning intention
- We are learning about acids, bases, indicators and pH by using inductive reasoning, and analysing experimental data to understand the importance of acids and bases in consumer products
- Primary standard: technique and calculation
Slide 2 - Weigh out between 5.0 and 5.2 g of sample. Record the mass.
- Transfer to volumetric flask, dissolve the sample and make up to the mark. Sometimes it is best to wait a day so the sample is dissolved
Slide 3 - Calculation for primary standard