Cadmium bromide is used in photography and lithography. what is the molality of a solution prepared by dissolving 45.38 g of cdbr2 in 375.0 g of water?

Given:

As we know the formula,

→

By substituting the values, we get

hence,

The molality will be:

=

=

Thus the above answer is right.

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0.44 m is the molality

Explanation:

Molality means mol of solute in 1kg of solvent.

Solute → CdBr₂

Solvent → H₂O

Mass / Molar mass = 45.38 g / 272.21 g/m = 0.167 moles

1 g = 1x10⁻³ kg

375 g = 0.375 kg

0.167 m/0.375 kg = 0.44 m

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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