Advertisements
Advertisements
प्रश्न
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
V/V (volume percentage)
उत्तर
Volume percentage (v/v): Volume % of a component = `"V of the component"/"V of the solution" xx 100`
where, V represent volume
APPEARS IN
संबंधित प्रश्न
Calculate the molarity of the following solution:
30 g of \[\ce{Co(NO3)2 * 6H2O}\] in 4.3 L of solution.
When KOH solution is added to potassium dichromate solution the colour of solution
changes to yellow, because _______
(A) chromate ion changes to dichromate ion
(B) dichromate ion changes to chromate ion
(C) oxidation number of chromium changes from + 6 to + 4
(D) oxidation number of chromium changes from + 4 to +6
22.22 gram of urea was dissolved in 300 grams of water. Calculate the number of moles of urea and molality of the urea solution. (Given: a Molar mass of urea = 60 gram mol-1)
4.0 g of NaOH is dissolved in 100 ml solution. The normality of the solution is ____________.
Mole fraction of the solute in a 1.00 molal aqueous solution is ____________.
A solution made by dissolving 40 g NaOH in 1000 g of water is ____________.
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
(iii) w/V (mass by volume percentage)
The concentration of water molecules in pure water at 298 K is?
138 g ethyl alcohol is mixed with 72 g of water. The ratio of mole fraction of alcohol to water is ______.
A given solution of H2O2 is 30 volumes. Its concentration in terms of molarity is ______.