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

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Q: Why molality is preferred over molarity in expressing the concentration of a solution?
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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.)


What is the solution concentration expressed in terms of molarity?

Molarity is Moles/Liter, Molality is Moles/kg


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


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.


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.


How are concentrations in solutions quantified?

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


Why molality is better than the molarity concentration in chemisrtry pratical calculation?

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.


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.


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.


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.


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 relation between molality and molarity?

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


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


How are molarity and molality similar?

Both express moles of solute in the numerator.


What are the modes of expressing concentration of a solution?

The concentration of solution means to express the amount of solute in specific amount of solvent or solution, there are different ways to represent the concentration of a solution as, 1-Molarity.. moles/dm3 2-Molality.. moles /K.g 3-Normality .. gram equivalent/dm3 4-Mole fraction 5-ppm 6-ppb.


What are three ways of expressing the concentration of the solution?

In chemistry we might use moles per litre. In physics we'd be more likely to use g per litre or g per centimetre cubed.


There are several ways to express solution concentration dilute concentrated ppm molarity molality normality All of these have one thing in common They describe the what?

quantity of solute dissolved in a given quantity of solvent


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 does molarity of a solution indicate?

Molarity is an indication for concentration.


What are three ways you can measure concentration?

molarity (moles solute/liters solution), parts per million (or parts per billion, or thousand, or trillion for that matter), and molality (moles solute/kg solvent)


Is 0.001mhcl a strong acid?

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


What terms are used to describe solutions with different amounts of solute?

Molarity or Molality


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 relation between molarity and molality and normality?

"Normality" refers to the activity of a reagent: gram equivelant dissolve in a liter? "Molarity" refers the numbers of moles of the solute present per litre of the solution. "Molality" refers the numbers of moles of solute present in 1000 grams of the solvent. Thus, for hydrochloric acid (HCl) and sodium hydroxide (NaOH) the normality is equal to the molarity. But for dibasic substances like sulfuric acid (H2SO4) or barium hydroxide Ba(OH)2, the normality is twice the molarity. For a tribasic substance, normality would be three times the molarity and so forth.Molarity measures the number of moles of a substance present in per liter of solution. Normality is basically a measure of concentration that is in the mixture of solution.


What does molarity measure?

Concentration

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