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Stoichiometry

Stoichiometry
Number of gm moles of solute dissolved in 1 kg of solvent is called its

Formality
Molality
Molarity
Normality

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Stoichiometry
For a reacation, X → Y, if the concentration of 'X' is tripled; the rate becomes nine times. The order of reaction is

1
3
2

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Stoichiometry
pH value of a solution containing equal concentration of hydroxyl and hydrogen ions will be

10
7
14

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Stoichiometry
A sample of well water contains 140 gm/m³ Ca²⁺ ions and 345 gm/m³ Na⁺ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO₃ in gm/m³ is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16)

345
485
140
350

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Stoichiometry
For water evaporating into usaturated air under adiabatic conditions and at constant pressure, the __________ remains constant throughout the period of vaporisation.

Dry bulb temperature
Wet bulb temperature
Humidity
Relative saturation

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Stoichiometry
Atoms of the same element, but of different masses are called

Isotopes
Isotones
None of these
Isobars

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