An alloy consists of 240.03 grams of copper and 0.839 kilograms of gold. If the atomic weights of Cu and Au are 63.55 g/mol and 196.97 g/mol, what is the mole percent of copper in this alloy?

Q: Upon burning Mg in air, magnesium oxide and magnesium nitride are formed. The correct statement…

A: Here, it is given that, upon burning magnesium in the air, magnesium oxide and magnesium nitride are…

Q: Your doctor has diagnosed you as being anemic-that is, as having too little iron in your blood. At…

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Q: Calculate the mass of H2SO4.

A: Mass of H2SO4 is 98.

Q: Which of the following is the molecular weight of a binary compound made from the element calcium…

A: A compound which is formed exactly of only two atoms that are different from each other, and cannot…

Q: A metal (M) forms an oxide with the formula MO. If the oxide contains 39.70 % O by mass, what is the…

A: Molar mass of an element is its characteristic property .So to identify the metal, first its molar…

Q: How many grams of carbon are present in 67.9g of C3H3? Atomic weights: C = 12 H= 1 55.6g 25.5g 22.6g…

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Q: A metal (M) forms an oxide with the formula M2O. If the oxide contains 16.99% O by mass, what is the…

A: The given data contains, mass of Oxygen = 16.99 g. Thus mass of M= 100-16.99 = 83.01 g.

Q: An iron-containing compound is 20.1% Fe, 11.5% S, 63.3% O, and 5.1% H. What is the empirical formula…

A: For calculating Empirical formula for compound we follow these steps:(i) calculate %Atomic mass for…

Q: Lithium carbonate, Li2CO3, contains 18.8 % lithium and is used in the treatment of mental illnesses…

A: Given : mass percent of lithium in Li2CO3 = 18.8 %. And mass of Li2CO3 sample = 1.48 g

Q: What is the mass percent composition of platinum in the carboplatin, C6H12N2O4Pt? Relative atomic…

A: Introduction :  The percent composition gives the mass percentage of each chemical element in the…

Q: What is the overall percent by mass of the Cr in the Cr-Zn alloy if the following alloys were to be…

A: Given We know about the mass percentage  given date is  A.100gram of 15% Cr in the Cr-Zn alloy  B.…

Q: How many atoms of titanium are there in  0.570 mole of each of the following? ( In Ti atoms)   a.…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Dolomite is a carbonate of magnesium and calcium. Analysis shows that 7.81 g of dolomite contains…

A: The given data contains, mass of dolomite = 7.81 g. mass of calcium = 1.70 g

Q: Which titanium-containing mineral, rutile (Ti O 2 ) orilmenite (FeTi O 3 ), has the larger…

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Q: Iron exists in nature as a mixture of predominantly three isotopes: 26Fe (53.94 amu), 56 neFe (55.93…

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Q: 1. When 28.0grams of CO is analyzed, it is found to contain 12.0g of carbon and 16.0g of oxygen. How…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: What are the basic units-single atoms, molecules, or for- mula units-that compose each substance?…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Hydrates take the form: compound·nH2O. An unknown hydrate has a molar mass of 446 g/mol.  If the…

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Q: A Matter can not be created or destroyed, The mass of the reactants in a ch reaction will equal the…

A: Chemical bond is M Two types of chemical bonds are L Chemical reaction K Reactants F…

Q: M is a Group I metal. 0.5 mol of the metal sulphate weighs 71.05 g. What is the relative atomic mass…

A: The weight in gram of the number of atoms of an element present in 12.00 g of carbon-12 is relative…

Q: For the compound (Ca(OH)2) or calcium hydroxide, find the per cent composition of the element…

A: Given: The atomic weight of Ca=40 Molecular mass of calcium hydroxide= 1 x 40 + 2 x (1 + 16)=74…

Q: How many grams of magnesium are required to produce 4.380 kg of Si? (At mass: Mg324.31: Si-28.09)…

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Q: An experiment requires that enough C6H12O6 be used to yield 17.2g of oxygen . How much C6H12O6 must…

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Q: An unknown element X has the following isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant). What…

A: Given :  element X has the isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant).  Since Atomic…

Q: Give the molecules, atoms, and Ions in .150moles of Fe(OH)2 Fe= 55.45g O= 16.00g H= 1.01 g…

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Q: Determine the Average Atomic Mass of the mixtures of Hydrogen isotopes. 99% 'H, 0.8% ²H, and 0.2% 'H

A: Answer is explained below.

Q: What is the mass of aluminum if the same amount of electricity used to generate 500 g copper metal…

A: All the necessary calculations have been done in the following step.

Q: What is the molecular weight of compound BaCl₂2H₂O in unit amu (atomic mass unit) (U)

A: Molar mass is equal to sum of atomic mass of all elements

Q: What is the alumina content in weight % of the garnet with Al as the only 3+ cation has Mg2.508…

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Q: a certain protein has a molar mas of 2.88 x 10^5 g. what is the mass of the molecule of this protein

A: Given: Molar mass  of Protein = 2.88 x 105 g.  1 mole = 6.022 X 1023  molecules

Q: With the advent of techniques such as scanning tunneling microscopy, it is now possible to “write”…

A: Given:Surface is 20 atoms high and 14 atoms wide.Number of Platinum atoms = 20 atoms × 14 atoms =…

Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

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Q: The NASA Dawn mission recently measured the surface of Ceres, a large asteroid between Mars and…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: A carbon- hydrogen-nitrogen compound has a molar mass of 114.20 g/mol and it has the following…

A: Empirical formula of a compound may be defined as the formula which gives simplest whole number…

Q: (a) In the certain hydrated salt MSO3⋅4H2O, the mass percentage of H2O is 44.71%. Identify the…

A: Hydrated Salt -  It is a crystalline salt to which water molecules are loosely bound.  Molar mass of…

Q: How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; Si=28.09)…

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Q: Polyisobutylene is a synthetic elastomer, or rubber. The corresponding monomer is isobutylene, which…

A: Empirical formula can be written by taking out common the coefficient from molecular formula.

Q: A compound Y containing carbon, hydrogen and oxygen only have the following composition by mass: C:…

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Q: 19.18. What is the empirical formula of a mineral contg. 3.37% HO; 19.10% AlO: 21.00% CaO; and…

A: Empirical formula is the simplest formula of a compound which show ratio of atoms or molecules in…

Q: What is the mass percent composition of platinum in the carboplatin, C6H12N2O4Pt? Relative atomic…

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Q: Carbon has two stable isotopes, 12C, abundance 98.892%, and 13C, abundance 1.108%. In the mass…

A: The molecular weight peak is called the Molecular Ion peak (M). Since this peak is a radical cation,…

Q: An unknown metal forms a BCC structure with its side length of 2.884 Å. What is the atomic weight of…

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Q: What mass of NO2 would have the same number of moles of N with 0.402 g of porphyrin, C20H14N4?…

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Q: Which of the following compounds is a nonelectrolyte? a. acetic acid, CH3COOH b. hexane, C6H14 c.…

A: A compound which is not change into ions is known as non electrolyte.

Q: What is the mass percentage of N in the compound N2O3? Select one: a. 40% b. 36.8 % c. 64.3 % d.…

A: Given, mass percentage of N in the compound N2O3 = ? The formula used here is, mass percentage of…

Q: A rock is 17.5% by mass fayalite (Fe2SiO4), 17.6% by mass forsterite (Mg2SiO4), and the remainder…

A: Answer: First of all we will calculate the mass of each element in fayalite, frosterite and silicon…

Q: To what weight of AICI3 would 0.280 g of AgCl correspond? Atomic weights for Ag = 108, Cl = 35, Al =…

A: Molecular weight of AgCl = (108 + 35 ) = 143 g/mol  So, 143 g AgCl = 1 mol AgCl  1 g AgCl = 1/143 =…

Q: A compund with the formula M(NO3 )2 contains 53.4% oxygen by mass. What is the identity of element…

A: Let the molar mass of M be x g/mol Molar mass of N = 14 g/mol Molar mass of O = 16 g/mol Thus, molar…

Q: A 67.2 g sample of a gold and palladium alloy contains 3.07×1023 atoms . What is the mass…

A: Given : Mass of sample = 67.2 g And total number of atoms = 3.07 X 1023 atoms Assuming the moles of…

Q: 4 g of Y reacts completely with oxygen. The following equation (ii) represents the reaction. 4 g Y…

A: From now onwards, please, post the question in English only. We have to predict the mass of product…