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emanuel323
20.01.2020 •
Chemistry
If 0.33 moles of sulfuric acid were consumed in the reaction, how many
moles of ammonium hydroxide would be required?
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Ответ:
Sulfurous acid is formed by the reaction of water and sulfur dioxide.
Balanced reaction will provide the basic information.
Balanced Reaction :
SO₂ + H₂O > H₂SO₃
1 mol 1mol 1mol
From above reaction we come to know
1 mole of H₂O ≅ 1 mole H₂SO₃
if 1 mole of H₂O produces 1 mole of H₂SO₃ then
0.680 mole of water will be required to produces sulfurous acid
Explanation through calculation
apply the unity formula
1 mole of the H₂O ≅ 1 mole of H₂SO₃
x mole of the H₂O ≅ 0.680 moles of H₂SO₃
so by cross multiplication
1 mole x X mole ≅ 1 mole x 0.680 mole
we have to find moles of H₂O so by rearrangement of the above equation
X mole of H₂O = 1 mole x 0.680 mole
X mole of H₂O = 0.680 moles
Explanation:
Ответ:
K = 3.3
Explanation:
Nitric acid, HNO3, reacts with nitrogen monoxide, NO, to produce nitrogen dioxide, NO2 and water H2O as follows:
2HNO3(g) + NO(g) → 3NO2(g) + H2O(g)
Where equilibrium constant, K, is:
K = [NO2]³[H2O] / [HNO3]²[NO]
[] is the molar concentration of each species at equilibrium.
To solve this question we need to find molarity of each gas and replace these in the equation as follows:
[NO2] -Molar mass NO2-46.0g/mol-
18.6g * (1mol/46.0g) = 0.404mol / 7.7L = 0.0525M
[H2O] -Molar mass:18.01g/mol-
236.7g * (1mol/18.01g) = 13.14 moles / 7.7L = 1.707M
[HNO3] -Molar mass:53.01g/mol-
16.2g * (1mol/53.01g) = 0.3056 moles / 7.7L = 0.0397M
[NO] -Molar mass: 30.0g/mol-
11.0g * (1mol/30.0g) = 0.367 moles / 7.7L = 0.0476M
Replacing:
K = [NO2]³[H2O] / [HNO3]²[NO]
K = [0.0525M]³[1.707M] / [0.0397M]²[0.0476M]
K = 3.3