The concentration of an old solution of hydrogen peroxide is being tested because hydrogen peroxide decomposes over time. The following reaction is catalyzed by potassium iodide and used to determine the concentration. If 3.0 ml of the peroxide solution is tested and produces 55 ml of O2(g) at 750 mm Hg and 23˚C, how many grams of hydrogen peroxide were in the solution? 2 H2O2(aq) à 2 H2O(l) + O2(g)

Q: How many equivalents are present in 4.00 x 10²⁴ molecules of phosphoric acid?

A: We know that 1 mole of H3PO4 contains 6.023 x 1023 molecules. So, no of moles which contain…

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Q: parts per million

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A: The mass of a sample of hydrogen peroxide solution is 6.287 g.The moles of oxygen gas produced is…

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A: According to the question, Hydrochloric acid(HCl) can dissolve in solid iron as per the following…

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A:

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Q: PLEASE PROVIDE DETAILED SOLUTION AND GIVE THE EXPLANATION OF CORRECT AND INCORRECT OPTIONS....

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Q: How many grams of NaCl are in a 635mL solution of 3.00 M NaCl(aq)?

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Q: 0.450 g of HClO3 in 2.10 L of solution

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".