How many grams of HCL will react with 20 g of 20% NaOH solution.

univerkov | December 12, 2020 | education

NaOH + HCl = NaCl + H2O
To solve this problem, we first find the mass of the pure substance NaOH:
M = 20g * 0.2 = 4g.
Now we will find the number of things:
n = 4g / 40g / mol = 0.1 mol.
Using the formula we find that n (HCl) = 0.1 mol.
Let’s find its mass:
M = 0.1 mol * 36.5 g / mol = 3.65 g.

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