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Answered 2009-09-02 12:23:06

Concentrations in molality (moles of solute per kilograms of solvent) are independent of temperature and pressure whereas concentrations in molarity (moles of solute per total volume of solution in liters) are not.

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Why molality is preferred over molarity in expressing the concentration of a solution?

why molarity is preferred over molarity in expressing the concentration of a solution


What is the solution concentration expressed in terms of molarity?

Molarity is Moles/Liter, Molality is Moles/kg


Why molarity is more accurate than molality?

because molality is independent of temperature and molarity is dependent on temperature further molality is dilute while molarity is concentrated.


How are concentrations in solutions quantified?

through molarity,molality, normality. through molarity,molality, normality.


What is the of the amount of solute dissolved in a solvent called?

This is known as the concentration or more technically the molarity or molality of the solution.


What is the definition of molarity molality and normality?

Molarity is concentration in moles/L (symbolized by M). Molality is a different way of expressing molarity, but in moles of solute/mass of solvent in mol/kg (symbol m). Normality is molarity x number of equivalents (symbolized by N). Equivalents are the ions that it would dissociate into (H+, OH-, e-, etc.)


Is molality or molarity expressed in grams of solute instead of moles of solute?

Neither. Molarity is moles per litre. Molality is moles in a kilogram.


What is the formula between molarity and molality?

Molarity is defined as grams of solute dissolved in 1 liter of solution and molality is defined as grams of solute dissolvd in 1Kg of solvent


Why must you keep a constant volume of reactants?

If there is not a constant volume, then different, incorrect data could be given when concerning concentration, molarity, molality, etc.


What is the formula relation between molality and molarity?

== Molality== (1000xMolarity)/((1000xdensity of solution)- (MolarityxMolecular weight of Solute)) ==


If the solute concentration of a solution is increased how does that affect the water concentration of that solution?

the amount of of solute dissolved into a solvent determines the concentration of a solution. The greater the amount of solute the stronger the concentration. in other words, the properties of molarity and molality determine the concentration of said solution.


When does molarity and molality become equal?

In dilute solutions... ie closer a solution is to pure water the closer molality and molarity come to equalling each other. This is because the molality uses mass and molarity uses volume, the ratio of these two (mass and volume) is density, and water has the density of 1 therefore the mass and volume are equal to each other. THEREFORE calculating the molarity of water is the same as calculating the molality of water.


What Modes of expressing concentration of solution?

1.percent concentrationa.percent by massb.percent by volumec.percent by mass-volume2.molarity3.molality4.mole fraction5.normality


Is it molality greater or molarity greater why?

"MolaRity" is the correct spelling for mass per amount solution."MolaLity" is the correct spelling for mass per amount solvent.The conversions of molality, b, to and from the molarity , c,for one-solute solutions are:c = ρ.b / [1 + b.M]andb = c / [ρ -c.M]where ρ is the mass density of the solution, b is the molality, and M is the molar mass of the solute.


How are molarity and molality similar?

Both express moles of solute in the numerator.


Why you use molality in biology experiments?

Molality is used when temperature varies in an exothermic or endothermic reaction because it is not dependent on temperature or pressure. Molality does not depend on tempratute whereas molarity does.


What is the difference between molarity and molality?

The difference is in the denominators.Molarity (M) - the number of moles of solute divided by the number of liters of solution.Molality(m) - the number of moles of solute divided by the number of kilograms of solvent.



Is 0.001mhcl a strong acid?

HCl is a strong acid no matter the molarity or molality.


What is molarity the measure of?

Molarity is a measure of concentration in SI.


What does molarity of a solution indicate?

Molarity is an indication for concentration.


Is the lower the molarity the higher the concentration or the lower the molarity the lower the concentration?

Yes, molarity is (number of moles/liters of solution). If you increase the numerator, the molarity number will be greater.




What is the molarity of a solution containing 8.0 moles of solute in 4.2 kg of solvent?

The molality of this solution is 1,905; to calculate the molarity you need the density of the solution.


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