A scientist is trying to discover information about an unknown metal in a compound. The formula for the compound is believed to be XBr, where X is the unknown metal. The scientist determined that a 4.720 g sample of this compound contains 4.745 x 10-2 mol Br. Calculate the atomic mass of the unknown metal, X. atomic mass = amu What is the identity of the metal? Provide the name or symbol of the element. metal:

Q: An unknown compound has the following chemical formula: Mn(CN) sub x where x stands for a whole…

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Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

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A: From the amount of CO2, H2O and N2 formed, we find out the amount of C, N and H present in the given…

Q: A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and  0.440 g of…

A: To answer this first of all we have to convert grams into moles and we have to determine the simple…

Q: An unknown compound has the following chemical formula: PtCl, where x stands for a whole number.…

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Q: A sample of pure alumina hydrate was obtained from a bag of flame retardant. A 5.000 g sample of the…

A: Weight of the hydrated aluminum oxide (Al2O3 . xH2O) = 5.000 g Weight of the anhydrous alumina (when…

Q: Ascorbic acid is one form of vitamin C and is known to contain only carbon, hydrogen, and oxygen.…

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Q: Assume the atomic mass of element X is 22.99 amu. A 22.42−g sample of X combines with 123.73 g of…

A: Mass of X = 22.42 g Mass of Y =123.73 g Atomic mass of element X = 22.99 amu Atomic mass of element…

Q: An unknown compound has the following chemical formula: Co(OH), where x stands for a whole number.…

A: Co(OH)2 No. of moles of Oxygen = 9.1 moles = No. of moles of Hydrogen No. of moles of Co = 4.5 mol…

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Q: he empirical formula for trichloroisocyanuric acid, the active ingredient in many household…

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Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Formula of the compound = XBr3 4.737 g sample of this compound contains 5.329×10−2 mol Br

Q: The compound phthalic acid consists of carbon, hydrogen and oxygen. When a 1.969 g sample of…

A: First calculate the number of moles and mass for C and H. Use that to calculate mass of O and its…

Q: A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of…

A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

Q: Gaseous butane (CH3(CH2)2CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide…

A: 2C4H10 + 13O2 = 8CO2 + 10H2O

Q: Para-cresol, a substance used as a disinfectant and in the manufacture of several herbicides, is a…

A: Para cresol is used to disinfectant  severel Herbicide. It is made with C,H,O.

Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

A:

Q: is trying to discover information about an unknown metal in a compound. The formula for the compound…

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Q: 1.Glucose is an important biological molecule with the molecular formula C₆H₁₂O₆. What is its…

A: 1.Glucose is an important biological molecule with the molecular formula is C₆H₁₂O₆. An empirical…

Q: %3D The mass of 2.21 x 1040 atoms of iron (molar mass = 55.845 g/mol) is O 2.78 x 104 g. 2.05 x 102g…

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Q: What is the mass, in grams, of 1.67 x 10^15atoms of Mn

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Q: An unknown compound has the following chemical formula: P,Cl, where x stands for a whole number.…

A: What is the value of x in PxCl3 =?

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A: The molar mass of cyanocobalamin is calculated using cobalt’s molar mass in step two.

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A: Mole of carbon= 5.9Mole of Mn = 3.0

Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

A:

Q: A 6.40 g sample of a compound is burned to produce 8.37 g CO, 2.75 g HO, 1.06 g N, and 1.23 g SO.…

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Q: A molecular formula expresses the number of each kind of atom in a molecule. For example, the…

A: Given: Mass of compound = 6.50 g Mass of CO2 = 9.53 g. Mass of H2O = 3.90 g. Molar mass of CO2 = 44…

Q: A combustion analysis of 5.214 g of a compound yields 5.34 g CO, 1.09 g HO, and 1.70 g N. If the…

A: Correction: It should be CO2  not CO It should be H2O not HO It should be N2 not N Given, Mass of…

Q: A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and 0.440 g of…

A: To solve thia problem first we have to calculate the number mole of C and H in the given sample.  By…

Q: An organic compound contains Carbon, Hydrogen, and Oxygen. The percentages of H is 6.73%, 39.99% C…

A: Given : Mass percent of C = 39.99 % Mass percent of H = 6.73 % Mass percent of O = 53.28 % Assuming…

Q: The element silver (Ag) has two naturally occurring isotopes:109 Ag and 107Ag with a mass of 106.905…

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Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: For the given compound, XBr3 Mass of sample = 4.712 g Suppose the mass of 1 mole of X be 'm' grams…

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".