What is the $SI$ unit of mass? How is it defined?

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(N/A) The $SI$ unit of mass is the kilogram $(kg)$.
$1$ kilogram is defined as the mass equal to the mass of the international prototype of the kilogram.

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Some Basic Concepts of Chemistry

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Significant figures and Units for measurement

State the $SI$ unit of thermodynamic temperature and provide an explanation for this unit.

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Match the following physical quantities with their appropriate units.

Physical Quantity Unit

$(A)$ Molarity $(1)$ $g \ mL^{-1}$

$(B)$ Mole fraction $(2)$ $mol$

$(C)$ Mole $(3)$ $Pascal$

$(D)$ Molality $(4)$ $Unitless$

$(E)$ Pressure $(5)$ $mol \ L^{-1}$

$(F)$ Luminous intensity $(6)$ $Candela$

$(G)$ Density $(7)$ $mol \ kg^{-1}$

$(H)$ Mass $(8)$ $N \ m^{-1}$

$(9)$ $kg$

Physical Quantity	Unit
$(A)$ Molarity	$(1)$ $g \ mL^{-1}$
$(B)$ Mole fraction	$(2)$ $mol$
$(C)$ Mole	$(3)$ $Pascal$
$(D)$ Molality	$(4)$ $Unitless$
$(E)$ Pressure	$(5)$ $mol \ L^{-1}$
$(F)$ Luminous intensity	$(6)$ $Candela$
$(G)$ Density	$(7)$ $mol \ kg^{-1}$
$(H)$ Mass	$(8)$ $N \ m^{-1}$
	$(9)$ $kg$