Asked by stephen
the label of a bottle of NaOH bears the following of 46.7% and density of 1.57gml
calculate the molar concentration of it?
calculate the molar concentration of it?
Answers
Answered by
DrBob222
Is this a liquid solution? I will assume it is.
1000 mL x 1.57 g/mL x 0.467 x (1 mol/40 g) = ? mols/L = ?M
1000 mL x 1.57 g/mL x 0.467 x (1 mol/40 g) = ? mols/L = ?M
Answered by
stephen
ya...it is supposed to be a liquid soluction
pls assist me with me with the solvings
pls assist me with me with the solvings
Answered by
DrBob222
M = mols NaOH/L of solution.
density of 1.57 g/mL x 1000 mL = 1570 grams = mass of solution
mass NaOH in that 1570 g = 1570 x 0.467 = ?
mols NaOH in the above = grams/molar mass = ? grams/40 = ?
That gives you mols/L which is molarity = M
density of 1.57 g/mL x 1000 mL = 1570 grams = mass of solution
mass NaOH in that 1570 g = 1570 x 0.467 = ?
mols NaOH in the above = grams/molar mass = ? grams/40 = ?
That gives you mols/L which is molarity = M
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