Describe the steps involved in preparing a1.50%(m/v) KBr solution?

Answer 1

ChemDoc is right.
1.5% (m/v) means 1.5 gr solute per 100 ml of solution.

So you need

m=(1.5/100)*V grams of KBr, where V is the volume in ml that you want to prepare.

Depending on the final volume (V) choose an appropriate volumetric flask or cylinder (depends what you have and how accurate you need to be-volumetric flasks are more accurate than cylinders). Put some water in it (e.g. half of your final volume), then add the solid, dissolve, fill up to the final volume and stir well.

Answer 2

1.5%(m/v) means 1.5 g KBr per 100 mL of solution. It shouldn't be confused with molarity which is mole per liter of solution.

Calculate the required mass of KBr by setting up a ratio with the desired volume of solution.

From the practical side, you should mass out the solid and then add water to obtain the desired volume.

Answer 3

1.5% (m/v) KBr solution means 1.5 gram KBr as a solute to make 100 ml KBr solution.

The Label should appear:

Potassium Bromide Solution 1.5% (m/v)

KBr 1.5 g
Water, distilled q. ad 100.00 ml

Date prepared:
Prepared by:

Answer 4

119 grams of KBr to be dissolved in 1 litre of the solution so for 1.5% it will be 119*0.015 grams

Answer 5

2 eggs
1/2 cup milk
cake
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