19.18. What is the empirical formula of a mineral contg. 3.37% HO; 19.10% AlO: 21.00% CaO; and 56.53% SIO2

Q: Given the reachion represented by C Hy)+32 (5)る州)+ CHy Cs) the balanced equation Calculate te number…

A: To get the amount of product formed, 1) Write the balanced chemical equation. 2) Consider the number…

Q: In 1987 the first substance to act as a superconductor at a temperature above that of liquid…

A: Mass percent can be calculated using following formula.

Q: A mixture of BaO and CaO weighing 2.212 g is transformed into mixed sulfates (BaSO4 and CaSO4)…

A: Given data: Mass of the mixture of oxides = 2.212 g Mass of the mixture of sulfates = 5.023 g

Q: The capacity of the soils to hold exchangeable cations therefore also depends on Blank 1.

A:

Q: A 50.0 mg sample of FeCl3·xH2O was heated to drive off the waters of hydration. After cooling to…

A: Given,Mass of sample of FeCl3.xH2O = 50.0 gAfter driving off water from sample, mass of FeCl3 = 30.0…

Q: how Many moles are they

A: Given :- mass of CO2 =1100 g  To calculate :- number of moles of CO2

Q: Calculate the percentage composition of KMNO,

A: Given :- chemical formula of compound = KMnO4  To determine :- percent composition

Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…

A: Mass percentage = (mass of solute / mass of solution) x 100%

Q: Q1: Calculate the mass needed to prepare 2.0L of 0.05M AGNO, (M. Mass 169.87g/mol) from its primary…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: The hydrated salt, MY3-xH0, was heated strongly in a crucible to remove all the water molecules of…

A: Hydrate = MY3.xH2O Salt = MY3 (MM = 230.99 g/mol) The data for this experiment are given in the…

Q: What mass of CO is required to react with 651 g of Fe2O3 ?

A: The balanced chemical equation for the given reaction is,

Q: I Water, ammonia and sulphur dioxide react together to form a compound A which has the following…

A: Given: The percentage composition by mass of N, H, S and O in compound A is 24.12%, 6.94%, 27.61%…

Q: 28.528.5 mol of P4O10P4O10 contains how many moles of PP?

A: Given, 28.5 mol of P4O10

Q: What mass, in grams, of C2H2 is needed to form 270.4 g of CO2? Assume excess oxygen.    2C2H2(g) +…

A:

Q: 011: calculate mass needed to prepare 5.0L of 0.10N Na,CO,(105.99g/mol) from standard solid.

A:

Q: What is the mass percentage of O in CO2? Provide an answer to two decimal places.

A: Given,  The mass percentage of O in CO2 is:

Q: The first step in the Ostwald process for making nitric acid is the formation of NO according to:…

A: The first step in the Ostwald process for making nitric acid is the formation of NO according to:…

Q: d. What mass of P,010 (s) is required to react with 7.50 g of PCI5 ()?

A: Balanced Reaction of P4O10 with PCl5 :  P4O10(s) + 6PCl5(s) .....> 10Cl3PO(l) Solution for d…

Q: When the high-temperature superconductor yttrium barium copper oxide is heated under flowing H,, the…

A: A superconductor is a substance that conducts electricity without resistance when it becomes colder…

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: 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: Given 90g of pure Fe2O3 calculate how many moles of iron(iii) oxide it contains

A: Given :- mass of Fe2O3 = 90 g  To be calculated :- number of moles of Fe2O3    number of moles =…

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

A:

Q: The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the water molecules of…

A: Given: Mass of empty crucible and cover  = 29.73 g Mass of crucible, cover, and hydrated salt =…

Q: How many moles of Fe203 will be produced from 10.0 moles FeS and 20.0 moles of0?

A: 4 moles of FeS reacts with 7 moles of O2 10moles of FeS reacts with 7 x 10/4 = 17.5 moles  so,…

Q: A 10.00 gram mixture of NaHCO3 and N22CO3 was heated and yielded 0.0357 moles of H2O and 0.1091…

A:

Q: Lysine is an amino acid which has the following elemental composition: C, H, O, N. In one…

A:

Q: The owner of a swimming pool supply company is offered what appears to be an exceptionally good deal…

A: Volumetric analysis is a quantitative method of analysis which is based on measurement of volumes.…

Q: A florist prepares a solution of nitrogen-phosphorus fertil-izer by dissolving 5.66 g of NH₄NO₃ and…

A: Given: Mass of NH4NO3 = 5.66 g Mass of (NH4)3PO4 = 4.42 g And volume of final solution = 20.0 L

Q: Write the chemical equations that correspond to ∆G°f for NH3( g) and for CO( g).

A:

Q: If the theoretical yield for the synthesis of the pain reliever acetaminophen in a reaction was…

A: Recall the expression for percentage yield Percentage yield=amount of acetaminophen recovered during…

Q: The active ingredient in disulfiriam, a drug used for the treatment of chronic alcoholism, is…

A: The active ingredient in disulfiriam = tetraethylthiurram disulfide Molecular weight of…

Q: When 1.5173 g of an organic iron compound containingFe, C, H, and O was burned in O₂, 2.838 g of CO₂…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: Lysine is an amino acid which has the following elemental composition: C, H, O, N. In one…

A: Lysine is an amino acid which has the following structure:

Q: What is the mass percentage of C in CH₃CH₂OH? Provide an answer to two decimal places.

A:

Q: a) The molecular formula of allicin, the compound responsible for the characteristic smell of…

A: The molecule is especially considered as the smallest possible unit of any particular compound which…

Q: A typical formulation for window glass is 75% SiO₂, 15% Na₂O, and 10.% CaO by mass. What masses of…

A: 75% SiO2 by mass means 75 g of SiO2 is present in 100 g of glass. Now Calculate the mass of SiO2 in…

Q: How many moles of NH3NH3 can be produced from 12.0 molmol of H2H2 and excess N2N2?

A: 1) Write the balanced chemical equation for the given chemical reaction. 2) Using the balanced…

Q: What is the mass percentage of C in caffeine, CsH1oN4O2? Provide an answer to two decimal places.

A: Mass percentage of Carbon in Caffeine is 6.18%

Q: This

A: According to the question, a 235.2 g sample of ground water is analyzed for calcium. The Ca2+ in the…

Q: Metallic titanium and its alloys (especially those with aluminum and vanadium) combine the…

A:

Q: 9. How many kilograms of iron can be obtained from 635 pounds of an ore that is 72.0% hematite,…

A:

Q: 1. A boiler burns fuel oil with the following analysis by mass : 80% C 18% H2 2%S 30% excess air is…

A:

Q: The equation for the preparation of phosphorous in an electric furnace is QCas(PO)2 + 6SIO, + 10C =…

A: The solution is given below -

Q: etirmine the empirical formula of the compound with the follwoing composition by mass 55.3% k, 14.6%…

A: The empirical formula gives the simplest ratio of atoms present in the compound.

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) Assuming an excess of…

A: Alum having general formula KAl(SO4 )2 · 12H2O(s) to synthesis alum reaction is

Q: how would I balance this assuming there's 3 moles of Cu(NO3)2 present, and no water in the reaction…

A: Correction: The reaction between copper nitrate and sodium carbonate is a double displacement…

Q: 4. A mixture of KC1O3 and MnO2 weighing 1.75g was heated to 3000C until decomposition was complete.…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number 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.