1pts
what is the molarity when 8.4 grams of naf (molar mass = 42 grams/mol) is placed in 100
ml of water?

molarity = 2 mol/ L

Explanation:

We know that molarity is equal to the number of moles of solute divided by volume of solution in litter.

Given data:

mass of NaF = 8.4 g

molar mass of NaF = 42 g/mol

volume of water = 100 mL

First of all we will convert the milliliter of solution in to litter.

we know that 1 litter is equal to 1000 mL.

100/ 1000= 0.1 L

Formula:

molarity = moles/ volume in litter

Now we will calculate the number of moles.

number of moles = mass/ molar mass

number of moles = 8.4 g/ 42 g/mol

number of moles = 0.2 mol

By putting the values in molarity formula, we will get,

molarity = 0.2 mol/ 0.1 L

molarity = 2 mol/ L

yes, water is wet, just as it makes other things wet, it is wet itself, kinda like ice, when ice is in water, the ice makes water cold, and ice is cold, therefore with that example, water is wet