Question

X de 201 Microsoft Word - BCH2604_202X + saca/studymatematerial/1364988048859f0fd6d312e102400/5e810344/BCH2604/t/101_2020_0_b.pdf 1.8 A 10% (w/v) solution means 1 10 g of solute in 100 L of solvent 2.0.1 g of solute in 10 mL of solvent 31 g of solute in 10 mL of solvent 4 10 gol solute in 0.1 Lof solvent 5 10 g of solute in 100 mL of solvent 19 A 10x stock solution means 1 it is 10 times the working concentration 2. It has to be diluted 0.10 times to be in the correct working concentration 3. It has a level 10 rating of danger 4. It has to be diluted by a factor 0.10 to be used 5. 10 people have used the solution prior to you reading the label 1.10 A dilution factor of 50 means 11 mL of solution must be added to 50 mL of HO 21 mL of solution must be added to 49 mL of HO 3 Serially pipetting a solution 50 times 4 Shaking a solution 50 times 5. If the final volume is 1L the initial volume of concentrate solution was 500 ml A005 M solution means 150 mg of solute in TL of solvent 2005g of solute in 1 mL of solvent 3 and 2 are correct 10.05 mole of solute in lof solution 5 12 and are correct 112 Achromaplate or thin layer chromatography plates made up of Wood 2 Glass Metal COMPAS

biochemistry

Answer 1

1.8 A 10% (w/v) solution means

Answer :- 5 10 gm of solute in 100 ml ofsolvent

It is a concentration term for solution.. It means that in every 100gm solution there is 10gm solute….

Also 10%w/v means than in every 100ml solution there is 10gm solute..

1.9 A 10* stock solution means

Answer :- 1 It is 10 times the working concentration

factor means. The “X” factor simply indicates that the solution is in a concentrated form that must. usually be diluted to a “1X” concentration for use. For example, a 5X concentrated solution must. be diluted 5-fold, while a 10X concentrated solution must be diluted 10-fold

1.10 A dilution factor of 50 means

Answer :-2. 1 ml of solution must be added to 49ml of  H2O

Dilution Factor is the factor by which the stock solution is diluted. It may be expressed as the ratio of the volume of the final diluted solution (V2) to the initial volume removed from the stock solution (V1). If you want to make a 1/50 dilution you add 1 volume part of the one to 49 parts of the other, to make up 50 parts in all.

1.11. A 0.05 M solution means

Answer :- 4. 0.05 mole of solute in 1 litre of solution

A molar solution is an aqueous solution that contains 1 mole (gram-molecular weight) of solute in 1 liter of the solution. ... Molarity is the number of moles of solute per liter of solution.

1.12. A chromaplate or thin layer chromatography plate is made up of

Answer :- 2 Glass

The chromaplate or thin layer chromatography plate is made up of glass.