Determine the molality and molarity of a sodium chloride solution prepared by adding 52.80 g of solid NaCl to 150.0 g of water. The density of the saline solution is 1.1972 g mL . Molality

Explanation:

First we convert 52.80 g of NaCl to moles, using its molar mass:

To determine the molality, we convert 150.0 g of water to kg:

As for the molarity, we determine the total mass of solution:

And calculate the volume, using the density:

Finally we calculate the molarity:

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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