Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 521 g of NaOH(s) per liter of solution. Calculate the molarity of this saturated NaOH(aq) solution.

The molarity of this solution is approximately .

Explanation:

The molarity of a substance gives its quantity (in number of moles) in each liter of the solution.

According to the question, there are of in each liter of this solution. The goal is to find the number of moles of formula units in that

contains three elements: Na, O, and H. Look up a modern periodic table for the relative atomic mass of each element:

Calculate the formula mass of .

.

That's the mass of each mole of formula units. Calculate the number of moles of formula units in that of

.

Apply the equation to find the molar concentration of this solution. In this equation, is the number of moles of the solute, and is the volume of the solution.

.

there is none because earth is stationary and flat.

b.

the accuracy of the data.