You have a mixture of CrCO3 and CrO in a test tube. The CrCO3 decomposes to chromium(II) oxide and CO2 gas upon heating.  The CrO does not react with heating.  The mass of the sample before heating is 25.61 g.  The mass of the sample after heating is 23.653 g.  Calculate the percent of CrCO3 in the original sample.

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A: 1.00×103 kg of carbon is equivalent to 1.00×106 g of carbon.

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Q: complete reaction

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Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O according to the…

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Q: Consider the balanced equation for the reaction of molecular iodine with molecular oxygen: 2 12 + 5…

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Q: The following reaction can be used to convert carbon dioxide to oxygen gas. 4 KO2 (s) + 2 CO2(g) → 2…

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Q: Consider the Haber-Bosch process for the synthesis of ammonia from its elements. Calculate the…

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Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

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Q: O How many grams of Ag,S will theoretically be produced when 3.94 g of AgNO3 and an excess of Na,S…

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Q: the reaction of ammonia with excess oxygen will produce a 24.8% yield of NO. What mass of NH3 must…

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Q: What is the maximum mass of TiCl4 that can be obtained from 55.7 g TiO2, 62.9 g Cl2 and excess…

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Q: What mass of zinc sulfide 19 5. The addition of concentrated hydrochloric acid to manganese (IV)…

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A: As per our guidelines, we are supposed to answer only one question. Kindly, repost other question as…

Q: 6._Mg(OH)2 + _H3N→_H20 +_Mg3N2 + heat a. Balance the reaction b. What is the reaction type? C. If…

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Q: In an experiment, exactly 1.60 grams of salicylic acid (138.121 g/mol) reacted with excess methanol…

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Q: In an amazingly violent reaction, water can be synthesized from hydrogen gas a oxygen gas. What is…

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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".