Calculate the percentage of sodium hydroxide in a given solution in which 40 grams are dissolved in 750 ml of solution
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Answer:
0.00133% ans.
Explanation:
The molar mass of NaOH is 40 g/mol.
The number of moles of NaOH is equal to the ratio of its mass to molar mass.
The number of moles of NaOH =
40g / 40mol
=1mol
The molarity of NaOH solution is the ratio of number of moles of NaOH to total volume of solution in L.
M= 1mol / 750ml = 0.00133% ans.
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