. Determine the moles of copper and oxygen in the copper oxide from the data 2. What is the empirical formula for the copper oxide salt determined in the data 3. Write a balanced chemical equation for the methane/copper oxide reaction   DATA: Mass of empty test tube = 57.6382g Mass of tube + copper oxide = 59.8449 Mass of copper oxide = 2.2067 Mass of tube + copper = 59.3970 Mass of copper = 1.7588 Mass of Oxygen lost = 0.4479

Q: 4 Fe + 3 O2 ⟶⟶ Fe2O3   If you run a reaction with the balanced equation from above that has a…

A: 4 Fe + 3 O2 ⟶ Fe2O3 The balanced equation will be :-                                    4 Fe + 3 O2…

Q: You have a sample of hydrocarbon of unknown formula. You only know that the molecule contains ONLY C…

A: Given : Mass of compound combusted = 1.230 g Mass of CO2 produced = 3.726 g And the compound…

Q: A 0.660 g sample of a mixture containing only NaBr and CaBr, is dissolved in water. An excess of an…

A: we have to calculate mass of Br- ions, mass percent of Br- ions in the original sample and mass…

Q: How many moles of propylene (C3H) are in 25.0 of the substance? g

A: Moles = mass/molar mass

Q: How many grams of oxygen would be produced from 37.4g Na2CO3? digit  ___ (your answer should not be…

A: The sodium carbonate contains two mole sodium, one mole carbon and three mole of oxygen.   Molar…

Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

A: Given: Weight of empty aluminum pan      = 0.4661 g Weight of CuCl2. x H2O sample       = 0.8390 g…

Q: When potassium chlorate is burned, potassium chloride and oxygen are formed. A.) Write a balanced…

A:

Q: You have a sample of hydrocarbon of unknown formula. You only know that the molecule contains ONLY C…

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Q: A 0.4230 g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was…

A:

Q: Moles Molecules/atoms Substance Molar Mass Mass Table sugar C12H22011 C. 34334 28.72 Nails Fe 55.85…

A:

Q: Determine the number of sulfur present in each of the the following quantities. a. 3.01 x 10^23 S2O…

A: a) Given : Number of S2O molecules = 3.01 X 1023 molecules. Since each molecule of S2O contains 2 S…

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Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

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Q: 452 ggon 1 mole 39.948 argon -11.31 moles argon

A: Unit conversion can be done by doing mathematical calculations with the unit conversion factor.

Q: If 8.9 x 1025 molecules of CO, are produced in a combustion reaction, what is the mass in kg of CO,…

A: Given:  Number of molecules of carbon dioxide =8.9 x 1025Mass of carbon dioxide produced has to be…

Q: A 1.252-g sample of a hydrate of cobalt(II) chloride (CoCl2∙xH2O) is heated in a crucible, cooled,…

A: Number of moles of cobalt chloride and water is determined as given below:

Q: 3. The reaction between Phosphoric Acid (H3PO4) with Calcium Hydroxide yields Calcium Phosphate and…

A:

Q: References) Use the References to access important values if needed for this question. The elemental…

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Q: Table 1. Reaction of steel wool in presence of oxygen. Complete the following table. Remember…

A:

Q: 5. How many grams of Oxygen are needed to make 7.1 g of Chlorine? SeCl6 + 02 --> Se02 + Cl2 O 1.1 O…

A: Gien mass of Cl2 produced= 7.1 gThe given balance reaction is:SeCl6 + O2  → SeO2 +3 Cl2 1 mol of O2…

Q: Write an equation for the main chemical reaction used to test for each: а) СО b) CH c) SO?-

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Q: Nitroglycerine decomposes violently according to the chemical equation below, What mass of carbon…

A:

Q: A researcher analyzed an unknown solid, extracted from the bark of spruce trees, to determine its…

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Q: What number of molecules (or formula units) are present in 1.18 g of each of the following…

A: Avogadro's number is the number of atoms, molecules, ions, formula units or any particle found in…

Q: A student uses 0.40 mL of bromobenzene and 0.052 g of elemental magnesium for their Unit 6…

A: Answer is explained below.

Q: How many moles of pentane (C 5H 12) are contained in the following number of molecules? a. 5.00 × 10…

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Q: Convert 1.5 x 1023 molecules SO2 to moles.

A:

Q: An analysis of glycine (an amino acid) gave the following data: 32.0% carbon, 6.7% hydrogen, 18.7%…

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Q: 3. Calculate the percent by mass of the second element in the properly written formula. Example, for…

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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".