KMnO4 Assign oxidation numbers to each element in this compound.
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Explanation:
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In this case, since nitric acid is HNO₃ and strontium hydroxide is Sr(OH)₂ we can represent the balanced chemical reaction by equaling the atoms of strontium, nitrogen, oxygen and hydrogen at both reactants and products as shown below:
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Molality is defined as the ratio of moles of solute to the mass of solvent in Kg. It is also known as molal concentration.
Formula used for determining the molality is:
(1)
where,
= change in temperature
= freezing point depression constant
m = molality
Here, =
and
=
Put the above values in formula (1)
=
Hence, molality of nonvolatile solute is