Question

Calculate the concentration in terms of mass by volume percentag of solution contai i g 2.5 grams of potassium chlorine in 50 ml of potassium chlorine solution

Answer 1

Key Concepts

Weight/Volume Percentage Concentration is a measurement of the concentration of a soluton.  

weight/volume percentage concentration is usually abbreviated as w/v (%)  

To calculate w/v % concentration:  

w/v (%) =  

   mass of solute (g)      

volume of solution (mL)

× 100  

Common units for w/v% concentration are g/100mL (%)  

Solubilities are sometimes given in units of grams of solute per 100 mL of water, that is, as a weight/volume percentage concentration.  

weight/volume is a useful concentration measure when dispensing reagents.  

Note that weight/volume is also referred to as mass/volume.  

mass/volume can be abbreviated as m/v  

mass/volume percentage concentration is abbeviated as m/v %