Determine the mass of the salt obtained by the interaction of 60 g of HNO3 with 0.5 mol of NaOH.
September 18, 2021 | education
| To solve, we write down the equation of the process:
HNO3 + NaOH = NaNO3 + H2O – ion exchange, sodium nitrate was formed;
Let’s make the calculations:
M (HNO3) = 63 g / mol;
M (NaOH) = 39.9 g / mol;
M (NaNO3) = 84.9 g / mol.
Determine the amount of acid:
Y (HNO3) = m / M = 60/63 = 0.95 mol (substance in excess);
Y (NaOH) = 0.5 mol (deficient substance);
Y (NaNO3) = 0.5 mol since the amount of substances is 1 mol.
The calculation is based on the substance in deficiency.
4. Find the mass of the product:
m (NaNO3) = Y * M = 0.5 * 84.9 = 42.45 g
Answer: received sodium nitrate weighing 42.45 g
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