A cable making company produces a metal wire, with a diameter of 1.00 mm. What will be the length of that wire, if it exactly contains 1.00 mole of that metal? (Density of metal = 17.0 g/cm³)

Q: Give the following generic chemical reaction, determine the moles of B2 needed to react with 1.25 x…

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Q: 3.109 How many moles of O are needed to combine with0.212 mol of C to form (a) CO and (b) CO2?

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Q: What is the mass in kilograms of 7.16 mole of Fe?

A: Given data, Moles of Fe = 7.16 moles We know, Moles of a substance is given by the ratio of given…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

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Q: The Mole Concept Sulfur compounds are converted to H2SO4 while NO, compounds are converted to HNO3,…

A: Given reaction is :  NH4+ + 2O2 --------> NO3- + H2O + 2H+

Q: If 5.00 moles of MgO were reacted with excess moles of P,Ojo, what mass of Mg(PO4)2 would be…

A: Number of moles of MgO = 5.0 moles

Q: If 4.1 g of Cr is heated with 9.3 g of Cl2 what mass CrCl3 will be produced?

A: Mass of Cr = 4.1 g Mass of Cl2 = 9.3 g The molar mass of Cr = 52 g/mol The molar mass of Cl2 =71…

Q: A sample of hydrate was heated thoroughly. How many waters of hydration are there if the anhydrous…

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Q: If you had 1.08 x 1024 molecules of barium dihydrogen phosphate, how many moles of the substance…

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Q: 2NO,, what mass of oxygen is required to react completely with 7g of nitrogen? 1. Given the…

A: The given data contains, mass of nitrogen = 7 g. Molar mass of N2  = 28 g/mol. Molar mass of O2 = 32…

Q: 5. How many moles are in 6.24 x 1021 molecules of CaSO,?

A: According to Avogadro law  1 mole = 6.02* 1023 molecule

Q: If the same amount of electricity that is used to produce 500 g copper metal (Cu Cu") is used to…

A: Given: Mass of Cu produced = 500 g. The moles of Cu produced = MassAtomic mass = 50063.55 = 7.868…

Q: 6.5 x 10²³ atoms of H is equal to how many moles H?

A: Number of units in one mole of any substance is defined by Avogadro's number and it is  equal to…

Q: B. How many moles of manganomanganic oxide will react with 5.33 x 1025 atoms of aluminum?

A: The balanced Chemical equation given - 3Mn3O4 + 8Al -----> 4Al2O3 + 9Mn   One mole of aluminum =…

Q: b. If 5.80 moles of oxygen burns according to the previous reaction, how many moles of carbon…

A: Balanced equation means number of atom in reactant side is equal to number of atom in product side.

Q: A student reacts 13 moles of iron with 21 moles of oxygen according to the following equation:…

A: Consider the given balanced reaction is as follows; 4 Fe s + 3 O2 g  → 2 Fe2O3 s Consider the given…

Q: 4. An alloy of solder is tin and lead. Calculate the number of moles of each metal that are pres-…

A: Given that an alloy of solder is Tin(Sn) and Lead(Pb) .  Percentage amount of Sn present in alloy =…

Q: 2. The volume of the nucleus of a carbon atom is about 9.9 x 10-39 mL. The molar mass of carbon is…

A: Given: Volume of carbon nucleus atom = 9.9 × 10-39 mL. And molar mass of a carbon atom = 12.00…

Q: When an identical 4.008 g of sulfur is burned completely in a restricted amount of air, it again…

A: Given,Sulfur is burned completely in a restricted amount of air, it again combines with oxygen to…

Q: A fuel mixture comprising 600.0g of N204 and 400.0g of CH&N2 is used in a test of laboratory-scale…

A: Given, mass of N2O4=600.0 gmass of CH6N2=400.0 g

Q: Given the following reaction in the picture, what mass of hydrogen gas will be produced by the…

A: Given reaction: 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g) We have to find the mass of hydrogen gas that…

Q: 8. To obtain pure lead, lead (II) sulfide is burned in an atmosphere of pure oxygen. The products of…

A: Here lead sulphide reacts with oxygen to give lead and sulphur trioxide.

Q: 9) Aspirin (C9H®O4, Mw = 180.154 g/mol) is prepared by the acetylation of salicylic acid (C7H6O3, Mw…

A: Salicylic acid reacts with acetic anhydride to form aspirin and acetic acid. The equation for the…

Q: If 1.50 moles of nitrogen gas reacts with an excess of hydrogen gas, what mass of ammonia would be…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: molar mass

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Q: Oxygen makes up 46.7% by mass of the earth's crust. How any grams of oxygen are present if a sample…

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Q: 3.01 x 1023 molecules of sucrose is _ _ _ _ _ _ _ _ _ _ _ _ _ moles of sucrose.  Why don’t you need…

A: Given : Number of molecules of sucrose = 3.01 X 1023 molecules.

Q: The density of water is 1.00 g/mL at 4°C.How many water molecules are present in 2.56 mL of water at…

A: The density of a substance is the mass of the substance upon volume. The number of molecules is the…

Q: cylinder contains 1.475 x 1024 argon atoms. How many moles of argon are there in the cylinder?

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Q: 18. Consider the following reaction: I2O5(9) + 5 CO(9) → 5 CO2(9) + I2(9) a. If 80.0 grams of iodine…

A: I2O5 (g)  + 5 CO (g) →5 CO2 (g)  + I2(g) Number of moles of a substance…

Q: Hydrogen gas has a density of 0.090 g/L, and at normal pressure and 0.209 °C one mole of it takes up…

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Q: You have a lot of paperwork laying around. A ream of stacked paper is 500 sheets and is 2.0 inches…

A: Given, In the ream number of stacked paper = 500 1 mol of paper = 6.022×1023  sheets of paper number…

Q: 4. A student obtains the following data. 25.2246 g mass of clean, dry and empty crucible 25.3372 g…

A: Magnesium ribbon when burnt in air undergoes a chemical change and yields oxide of Magnesium. The…

Q: A gold bar is 5.50 cm long, 3.10 cm wide, and 0.300 cm thick. a). If gold has a density of…

A: Hence you posted multiple sub part questions, I answered only the first three questions   We have…

Q: If you place 7.05 g of aluminum in a beaker with 185 mL of 1.35 M KOH, what mass of KAl(OH)4 is…

A: If 7.05 g of aluminum in a beaker is treated with 185 mL of 1.35 M KOH, the mass of KAl(OH)4 that is…

Q: Which one of the following is not equivalent to one mol of the substance? O 65.39 g Zn O 14.01 g N O…

A: Given: To identify which option is not equivalent to 1 mole.

Q: 25. When aluminum oxide is electrolyzed in the industrial process for the production of aluminum…

A: Electrolysis is that technique in which electric current is used for decomposition of the compound…

Q: A piece of aluminum foil 1.00 cm square and 0.570 mm thick is allowed to react with bromine to form…

A: Using the given area and thickness, find the volume of aluminum foil.

Q: The Mole Concept Sulfur compounds are converted to H2SO, while NO, compounds are converted to HNO3,…

A: Sulfur compounds are converted to H2SO4 while NOx compounds are converted to HNO3 and NH3 reacts…

Q: Brasses are alloys in which copper is the primary component and zinc is the second most abundant…

A: Given: % of Zinc in naval brass = 39.25 % Mass of sample of naval brass = 72.1 g Molar mass of Zinc…

Q: What does a chemical equation show? A. The reactants and products in a chemical reaction B. The…

A: Solution 7). A chemical reaction always shows reactants and products

Q: 2) If 28.9g of Lithium Nitride react, how many grams of Magnesium Carbonate are needed to react with…

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Q: What is the mass of 0.015 moles of FeO?

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Q: The molecule Al(OH), has Al atom(s), O atom(s) and v H atom(s). Therefor, the molar mass of Al(OH),…

A: Molar mass is the mass of a chemical element divided by the amount of substance (mol). It can be…

Q: 2_Н.О, — 2 Н,О + a. If 1.34 mol hydrogen peroxide reacts, then how many moles of oxygen will form?

A: The given reaction is,      2H2O2→2H2O + O2 Here in the reaction 2 moles of hydrogen peroxide formed…

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

A: Given :-  mass of Cu in alloy = 35 g  atomic wt. of Cu = 63.55 g/mol mass of Zn in alloy = 49 g…

Q: Suppose 8.60 g of CH4CH4 is allowed to burn in the presence of 17.00 g of oxygen. How much (in…

A: Given that 8.60 g of methane reacts with oxygen to form carbondioxide and water . Number of moles of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.