Question

1. which piece of equipment is best suited for measuring a volume of 85mL?

2. Could a 100mL volumetric flask be used to measure a volume of 85mL? In 1-2 sentences explain your reasoning.  

3. Beakers and Erlenmeyer flasks are often used to store or hold liquids but are not routinely used for measuring purposes. Explain why in 2-4 sentences.

4. list a piece of equipment that you believe will be the most accurate for the construction and usage of standard curves? Explain in 1-3 sentences

Answer 1

For measuring 85 ml of volume; 100 ml measuring cylinder is the most suitable equipment.

The volumeteic flask has only one mark that reads 100 ml. It has no calibration in between 0 to 100 ml . For the reason; volumetric flask cant be used to measure 85 ml.

Beakers and Erlenmeyer flasks are not accurate and hence are not used for volume measurement.

The equipments are:

1 buret: to dispense the titre and record the volume at end point

2 erkenmeyer flask: to keep the titrant

3 Measuring cylinder