Question

What is molality and molarity?​

Answer 1

Answer:

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Explanation:

Molarity, also known as molar concentration, is the number of moles of a substance per liter of solution. Solutions labeled with the molar concentration are denoted with a capital M. A 1.0 M solution contains 1 mole of solute per liter of solution. Molality is the number of moles of solute per kilogram of solvent.

Answer 2

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Molarity (M) = number of mole of solute present in one litre (1000ml) of solution is called molarity

$\longrightarrow \sf{molarity (M) = \dfrac{no\:of\:mole\:of\:solute}{volume\:of\:solution\:in\:litre}}$

unit of molarity=mole/litreOr capital M

Molarity depends on temprature

$\longrightarrow \sf{Molarity =\dfrac{mass\:of\:solute\:in\:gram ×1000}{molar\:mass\:of\:solute ×volume\:of\:solutioni\:n\:ml}}$

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2) Morality(m) = Number of mole of solute present in one kg (1000gram) of solvent is called molality.

$\longrightarrow \sf{Molality =\dfrac{number\:of\:mole\:of\:solute}{mass\:of\:solvent\:in\:kg}}$

unit of molality = mole/kg or small m

Molality is independent of temprature.

$\longrightarrow \sf{Molality =\dfrac{mass\:of\:solute\:in\:gram ×1000}{molar\:mass\:of\:solute ×mass\:of\:solvent\:in\:gram}}$

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