Standard solution

Question 1

What is a standard solution?

Answer 1

A solution of accurately known concentration.

Question 2

2 rules of standard solution?

Answer 2

• Mass of solute must be accurately measured (preferably using a 3dp balance)
• The correct glassware used to ensure accurate measurement of volume.

Question 3

5 steps of preparing a standard solution:

Answer 3

1) Tare a 3dp balance and weigh out the mass of solute into a clean beaker
2)Add deionised water to dissolve the solute and stir till dissolved
3) Transfer to a volumetric flask (rinse equipment with deionised water)
4) Add deionised water to the volumetric flask - ensure meniscus is on the line
5) put lid on flask and invert for thorough mixing

Question 4

8 pieces of equipment needed to make a standard solution?

Answer 4

Volumetric flask, 3dp balance, glass rod, deionised water, wash bottle, beaker,dropper pipette, spatula