Question

There are 0.625 moles of NaCl in 1.00 L of sea water. How many grams of NaCl are dissolved in 4.55 L of sea water

Answer 1

Find the mass of salt in that 1 L with \(\sf moles=\dfrac{mass}{Molar~mass}\)

then use a ratio/proportion to find the mass in the 4.55 L

Answer 2

Aren't there 0.625 moles in 1 liter? @aaronq

Answer 3

Aren't there 0.625 moles in 1 liter? Yes, that was given. Find the mass of the salt, as was already explained. If you know the number of grams in 1 litre, you will be able to set up a proportion to find the number of grams in 4.55 L.

Answer 4

@ghuczek So do I convert 0.625 moles to grams and then do I multiply that by 4.55?

Answer 5

yes

Answer 6

Got it! 0.625molx58.44g/1mol=36.525x4.55=166g