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What is the molarity of a solution that has 450 grams of sodium chloride in 800.0 mL of
water?

User Jdessey
by
3.8k points

1 Answer

4 votes

Answer:

= 9.6125M

Step-by-step explanation:

data:

volume = 800ml

800/ 1000 = 0.8dm^3

molar mass of NaCl = 23 + 35.5

= 58.5g

mass of NaCl = 450 g

moles= ?

molarity = ?

solution:

no. of moles =
(given mass)/(molar mass)

= 450 / 58.5

= 7.69 moles

now, molarity =
(moles)/(volume in dm^3)

= 7.69 / 0.8

molarity= 9.6125 M

User CWright
by
4.2k points