How Many Grams Of Potassium Chlorate Decompose, To Potassium Class 11 Chemistry Cbse

We’re being asked tocalculate for the mass of potassium chlorate (KClO3) that decomposes into potassium chloride (KCl) and 638 mL of O2.

You are watching: How many grams of potassium chlorate decompose

Decomposition reaction: 2 KClO3(s)2 KCl(s) + 3 O2(g)

We’re going tocalculate the mass of potassium chlorateusing the following steps.

Step 1. Calculate the moles of O2 produced using the ideal gas equation.


P = pressure, atmV = volume, Ln = moles, molR = gas constant = 0.08206 (L·atm)/(mol·K)T = temperature, K

Step 2. Calculate the moles of KClO3 decomposed using mol to mol comparison.Step 3. Calculate the mass of KClO3 decomposed using its molar mass.

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Problem Details

How many grams of potassium chlorate decompose to potassium chloride and 638 mL of O2 at 128°C and 752 torr?

2 KClO3(s) ⟶2 KCl(s) + 3 O2(g)

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Based on our data, we think this problem is relevant for Professor Donovan's class at UAKRON.

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change – Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change – Silberberg 8th Edition practice problems.

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