2 years ago

Ocean water is about 96.5% pure water. what is one of the most abundant elements in ocean water?

1 answer:

3 0

Salt. The six most abundant elements in ocean water are chlorine, sodium, magnesium,sulfur, calcium, and potassium. The salt halite, which is made of sodium and chloride ions, makes up more than 85% of the ocean's dissolved solids. Therefore, the most abundant element in ocean water is salt.

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If you have a 1.0 m aqueous solution of NaCl, by how much will it increase the water’s boiling point, if KB = 0.512 °C/m? In oth

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Answer: The elevation in boiling point is 1.024°C.

Explanation:

To calculate the elevation in boiling point, we use the equation:

$\Delta T_b=ik_b\times m$

where,

i = Van't Hoff factor = 2 (for NaCl)

$\Delta T_b$ = change in boiling point = ?

$k_b$ = boiling point constant = $0.512^oC/m$

m = molality = 1.0 m

Putting values in above equation, we get:

$\Delta Tb=2\times 0.512^oC/m\times 1.0m\\\\\Delta Tb=1.024^oC$

Hence, the elevation in boiling point is 1.024°C.

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