Tin (Sn) exists in Earth's crust as SnO2. Calculate the percent composition by mass of Sn and O in SnO2. % Sn

Q: determine the composition of  the following compounds: MgCl2,SiO2,(NH4)2S?

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Q: KOH(s) + CO₂(g) → K₂CO₃(s) + H₂O(l) Calculate the mass in grams of KOH that will be required to…

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Q: Calculate mass percent of each element in perchoric acid, HCLO4 ?

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Q: A 0.549 g sample of manganese metal reacts with excess sulfur to give 1.191 g of manganese sulfide.…

A: Answer: Molar mass of Manganese metal is 54.9g/mol Given mass of Manganese metal is 0.549g Since,…

Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

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Q: Oxygen gas can be produced by the decomposition of Hydrogen peroxide (H2O2) H2O2 (l) → H2O (l) + O2…

A: Hydrogen peroxide decomposes into hydrogen and oxygen gas. The equation for the balanced chemical…

Q: 31. How many moles of potassium bromide can be produced from the reaction of 2.92 moles of potassium…

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Q: Fluorides of the noble gas xenon can be formed by reaction with fluorine under high temperature and…

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Q: Cryolite, Na, AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: The first step in this problem is to identify the limiting reactant, which is the reactant that will…

Q: Calculate the mass in grams for 8.86 x 10^2 moles of PCl3.

A: Molar mass of PCl3 has to be calculated: gram atomic mass of Phosphorous (P) = 31 g gram atomic mass…

Q: Consider the following equation: KOH(s) + CO₂(g) → K₂CO₃(s) + H₂O(l) Calculate the mass in grams of…

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Q: - Use dimensional analysis to convert 1.75 mol Mg3(PO4)2 to grams of Mg3(PO4)2-

A: Convertion of moles into mass by using below relation Number of moles = mass of compound/ molecular…

Q: Calculate the percentage composition for PCI3. Mass percentage of phosphorus = Mass percentage of…

A: Formula : PCl5 Molar mass of P = 31 g/mol Molar mass of Cl = 35.5g/mol  Molar mass of PCl5 = P +…

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO₂ and H₂O. When…

A: Combustion of 2.33 g of a hydrocarbon C2H5 in air produces 2.24 g CO, 3.53 g CO2 and 3.61 g H2O…

Q: The mineral bauxite, which is mostly Al2O3, is the principal industrial source of aluminum metal.…

A: Given,  7.00 ton of Al2O3  1 ton = 907184.74 grams  7 ton = 7x907184.74 grams

Q: White phosphorus (P4) is used to produce phosphorus oxides, such as P4O10. How many kilograms of…

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Q: Use stoichiometry to convert moles of Na3PO4 to moles of Ca3(P04)2.   mass of Na3PO4 (sodium…

A: A numerical problem based on mole concept. Na3PO4 and Ca(PO4)2 are prescribed whose molar…

Q: Quartz, SiO2, contains 46.7% silicon. What mass of silicon is present in 370 g of quartz?

A: To solve this problem we have to calculate the mass of silicon present in quartz .

Q: What's the percentage by mass of Cl in MgCl2 if it  is 24.6% Mg by mass?

A: Intrdouction : %age by mass of Mg = 24.6%

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

A: Given: Mass of sample = 1.000 g Mass of CO2 formed = 2.579 g Mass of H₂O formed = 0.6536 g Molar…

Q: Gypsum, CaSO4 · 2 H2O, is used to manufacture cement. What is the mass percent of water in this…

A: Given :-  molecular formula of gypsum =  CaSO4 · 2 H2O  To calculate :-  mass percent of water in…

Q: Reaction B. 1. B₂H6 2. H2O2 (aq) 3M NaOH Draw the product in rea Select Draw Rim C

A: This reaction is an example of hydroboration oxidation reactions. In which alkene is converted into…

Q: V (s)+O2 (g)=V2O3 (s) V (s)=50.94 g/mol O2 (g)=32.00 g/mol V2O3 (s)=149.88 g/mol a. Calculate…

A: (a) Balanced chemical reaction :                   4V(s)               +            3O2(g)…

Q: 1.How many moles of CuO can be produced from 1.11 mol of Cu2O in the following reaction?…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…

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Q: Starting with the following equation, Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) calculate the moles of…

A: We have given that  Starting with the following equation, Fe2O3(s) + Al(s) ------->  Fe(s) +…

Q: Cryolite, Na, AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: To solve this problem, we need to balance the given chemical equation, determine the limiting…

Q: Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) calculate the moles of Fe₂O₃ that will be required to produce…

A: The balanced chemical equation for the reaction between Fe2O3 and Al is: Fe2O3(s) + 2Al(s) → 2Fe(l)…

Q: The mineral bauxite, which is mostly Al2O3, is the principal industrial source of aluminum metal.…

A: 1 ton = 106 g So, 9 ton = 9 x 106 g

Q: A newly discovered metalloprotein, which contains four atoms of Mo per molecule of protein, is found…

A: The given values in the question are:Number of Molybdenum (Mo) atoms per molecule of protein = 4Mass…

Q: A 0.549 g sample of manganese metal reacts with excess sulfur to give 1.191 g of manganese sulfide.…

A: Given that -  Mass of manganese sample = 0.549 g  And, mass of manganese sulfide = 1.191 g    Now,…

Q: A mixture of CaCO₃ and CaO weighing 0.693 g was heated to produce gaseous CO₂. After heating, the…

A: Molecular mass The molecular mass is the mass of a given molecule. It is measured in Daltons. The…

Q: The mineral bauxite, which is mostly Al2O3, is the principal industrial source of aluminum metal.…

A: This question is related to stoichiometry. In the given question, it is asked to calculate the…

Q: Write the balanced equation:  White phosphorus, P4, burns in air to form a compound with a mass…

A: Given that White phosphorus, P4, burns in air to form a compound with a mass percentage composition…

Q: what is the  mass in grams of NO that can be formed from 4.96 moles of NO2 in the reaction below…

A: From the reaction we can say that 3 mole of NO2 gives 1 mole of NO .  So 4.96 mole of NO2 gives…

Q: Calculate the mass percent of carbon in glucose (C6H12O6).

A: Dear student, since you have asked multiple questions but according to guidelines we will solve 1st…

Q: How many grams of sodium fluoride (used in water fluoridation and manufacture of insecticides) are…

A: The equation for the reaction is

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.