Chemistry Standards

The initial standard solution is called ________

• stock solution

• diluted solution

• unknown solution

• volumetric solution

Step 1 of preparing a standard solution:___________

• Weigh a primary standard accurately

• Weigh a primary standard and round it to the nearest whole number

• Weigh approximately 1g of primary standard

• Weigh approximately 100g of primary standard

Step 2 of preparing a standard solution:___________

• Dissolve the primary standard in a small amount of deionised or distilled water in a beaker.

• Dissolve the primary standard in a small amount of deionised or distilled water in a volumetric flask.

• Dissolve the primary standard in a large amount of deionised or distilled water in a beaker.

• Dissolve the primary standard in a large amount of deionised or distilled water in a volumetric flask.

Step 3 of preparing a standard solution:___________

• Transfer the solution and rinsings to a beaker

• Transfer the solution and rinsings to a volumetric flask.

• Transfer the solution to a volumetric flask.

• Transfer the solution to a beaker.

Step 4 of preparing a standard solution:___________. Tick all that apply.

• Make up to the graduation mark

• Use a stopper

• Invert the flask

• Weigh the volumetric flask

Standard solutions can also be prepared by accurate dilution

• TRUE

• FALSE

Name the technique: Pipetting an appropriate volume of a standard solution into a volumetric flask, making up to the graduation mark with solvent, stoppering and inverting.

• accurate dilution

• precise dilution

• estimated dilution

• rough dilution