What is the composition, in atom percent, of an alloy that contains a) 35 g copper and b) 49 g zinc?

Q: What is the mass percent of iron in iron(II) phosphide

A: Fe2P Molar mass of Fe2P=142.66gm/mole Atomic mass of Fe = 55.85gm/mole

Q: Normal saline is an isotonic (to humans) solution which is used in medicine for volume…

A: Given: Concentration of NaCl in saline = 0.9 g/dL. And volume of saline solution = 1 L Since 1 L =…

Q: A sample of an iron alloy contains 89.4 g Fe, 2.50 g C, and 1.47 g Cr. Calculate the percent by mass…

A: Given :-  Mass of Fe = 89.4 g  Mass of C = 2.50 g  Mass of Cr = 1.47 g  To calculate :-  Percent by…

Q: A sample of an iron alloy contains 90.2 g Fe, 2.15 g C, and 1.01 g Cr. Calculate the percent by mass…

A: Total mass of the alloy = mass of Fe + mass of C + mass of Cr = 90.2 + 2.15 + 1.01 = 93.36 g

Q: Q6. What is the radius (in cm) of a cylindrical silicon block (density = 2.03 g/cm3) with the height…

A: The radius of cylindrical silicon block can be easily determined by its density and the total mass…

Q: Would you agree to buy 1 trillion (1,000,000,000,000) gold atoms for $5? Explain why or why not.…

A: From the given data, current price of gold = 1214.40 $/ troy ounce Given, 1 trony ounce = 31.1 g…

Q: Find the percentage of nitric acid if you know that 9.777 G has been diluted with water to a liter…

A: GivenNormality of NaOH solution =.104 Nvolume of NaOH=25 mLVolume of HNO3 used in neutralization…

Q: If a particular ore contains 55.9% calcium phosphate, what minimum mass of the ore must be processed…

A: Molar mass of calcium phosphate is sum of atomic masses of all atoms present in it.

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: Tetracarbon dioxide is an unstable oxide of carbon with thefollowing molecular structure:What are…

A: The name of the compound given is tetracarbon dioxide. And the structure of the compound is given as…

Q: The total weight of a mixture containing CaO and BaO is 0.6411 g, and the weight of anhydrous…

A: The total weight of CaO and BaO is 0.6411 g. The total weight of anhydrous sulphate salts obtained…

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: Calculate the mass percent of manganese (Mn) in potassium permanganate (KMnO4).

A: First of all, before leading to the solution we will learn about the meaning of mass percent. The…

Q: Madagascar is one of the most important gem-producing countries. three tonnes of Madagascar rock…

A: In order to solve this question, we will be using basic mole concepts. Also, since you have asked…

Q: One kind of metallic material consists of 82% Pb, 15.0% sb, and 3.0% Sn. a) how many grams of alloy…

A: The given composition of the alloy is: metalpercentagePb82%Sb15.0 %Sn3.0 % It states that if the…

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

A:

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: The initial abundances of O, Mg, and Si atoms are respectively in the ratio 21:1:1. And O, Mg, and…

A: The initial abundances are given in the ratio: O              21 Mg           1 Si             1

Q: A piece of an imaginary element (called Imaginium), with dimensions 1.2 mm x 1.2 mm x 1.2 mm, has…

A: Volume of piece = 0.12 × 0.12 × 0.12 cm3 = 0.001728 cm3 Volume of the imaginary element which…

Q: laterials engineers often create new alloys in an effort to improve the properties of an existing…

A: Materials engineers often create new alloys in an effort to improve the properties of an existing…

Q: A 67.2 gg sample of a gold and palladium alloy contains 3.55×1023 atomsatoms . A) What is the mass…

A:

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl6(PO4)+(OH):"4 H2O.…

A: Interpretation : Following questions need to be solved .

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

A: It is given that Al and Mg2.508Fe0.492 are the part of mineral. The oxidation state of Al in the…

Q: Magnesium sulfate (M9SO.) O a. 1 O b. 2 О с. 3 O d. 4

A: Magnesium sulfate is an ionic compound. An ionic compound is made of cation and an anion. Here,…

Q: Directions: 1. Read the following substances commonly found in your homes, know its uses and its…

A:

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

A:

Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl =…

A: Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)…

Q: iron (II) phosphate Ca3(PO)2->Fe,N +COCNJ2+FePo4 1. How many grams of calcium phosphate must be used…

A: The stepwise solution is as follows -

Q: Use the standard entropy data to determine the change in entropy for each of the reactions listed in…

A: Note - Since you have posted a question with multiple sub-parts, we will solve first three sub -…

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

A:

Q: A sample of an iron alloy contains 87.7 g Fe, 2.60 g C, and 1.52 g Cr . Calculate the percent by…

A: Calculate the percent by mass of each component present in the alloy sample.

Q: The physical basis for life is the carbon atom. This atom   a. is more abundant than silicon.   b.…

A: Carbon is a chemical element with the symbol C and atomic number 6. It's non metallic and…

Q: Vitamin C is a covalent compound with the molecular formula C6H8O6. The recommended daily dietary…

A: Number of moles of a substance is equal to the mass of substance divided by molar mass. Write the…

Q: SnF2 is used as a tool against dental caries, because when interacting with the hydroxyapatite…

A: Mass content of Tin in Sn2(PO4)OH = 67.95 %

Q: 15. Kkura found a sulfide ore in the dungeon which she identified to be chalcocite. While waiting…

A:

Q: The density of aluminum is 2.7 g/cm3; that of silicon is 2.3 g/cm3. Explain why Si has the lower…

A: Silicon, the symbol Si and the atomic number 14, are a chemical element. It is a tough, brittle,…

Q: Balance the following equation:   _____ Nm2Bf3 (aq) + _____ Cv (s) à ______ Cv2Bf (aq) + _____ Nm…

A:

Q: Metal vapor deposition is a process used to deposit a very thin layer of metal on a target…

A: Solution - According to the question - Given - Nickel (Ni) has a molar mass of 58.69 g/mol. mass of…

Q: In a chemical reaction, atom type, atom number and total electrical charge is conserved. According…

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Q: What mass in grams of KIO3 is needed to convert the copper in 0.2444 g of CuSO4 .5H2O to Cu(IO3)2?…

A: Answer:- We determined mass of KIO3 By using Stoichiometry of chemical reaction .

Q: A 67.2 gg sample of a gold and palladium alloy contains 2.68×1023 atoms. What is the mass percentage…

A: Mass percent of an element is the ratio of its mass  in the compound to the total mass of the…

Q: Portland cement contains some Fe2O3. Calculate the mass percent composition of iron in this…

A: Weight percent: The mass of one component divided by the total mass of the mixture, multiplied by…

Q: Crystals of magnesium phosphate and glucose, C6H12O6(s), were dissolved together in a beaker of…

A: GIVEN:-  Crystals of magnesium phosphate and glucose, C6H12O6(s), were dissolved together in…

Q: The nature of the elemental matter depends on which factor in the atom and what factors are added to…

A: Valence electrons are the electrons present in the outermost shell.

Q: Write the chemical equation for the word equation below. Each blank should be a different substance…

A:

Q: Thin film of silicon , Si is used for fabrication of electronics components. What mass of SiH4  is…

A: For a balanced chemical reaction .aA+bB→cC+dDMoles of A reacteda=Moles of B reactedb=Moles of C…

Q: An engineer has filed for a patent for a brand new allot to be used in golf club heads. The…

A:

Q: 1. A sample containing only CaCO3 (100.0869) and MgCO3 (84.3139) was ignited and carbonates…

A: Molar mass of CaCO3 = 100.0869 g/mol Molar mass of MgCO3 = 84.3139 g/mol Molar mass of CaO = 56.0774…