The active ingredient in photographic fixer solution contains sodium, sulfur, and oxygen. Analysis of a sample shows that the sample contains 9.7 g Na, 13.65 g S, and 10.21 g O. What is the empirical formula of the substance

Q: 15)An unknown compound is composed of 25.24% by mass of sulfur and 74.76% by mass of fluorine. If…

A: Molar mass of compound given= 254.11 g/mol  Let mass of the compound in grams= 100g  Then  mass of…

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of anhydrous copper chloride

Q: Glucose is a carbohydrate that contains carbon, hydrogen, and oxygen. The empirical formula of…

A:

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: Compound X2Z contains 32.2% X by mass. What mass of the compound contains 36.7 g X?

A:

Q: A compound was found to contain 115.49g of Ca, 92.16 g of O, and 5.82 g of H. What is the total mass…

A: mass of Ca = 115.49g mass of O = 92.16 g mass of H =  5.82 g  Molar mass of Ca = 40.078 g/molMolar…

Q: 13 4 10 5.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and…

A: Here an organic compound of mass 5.5 gram containing carbon and hydrogen , perhaps containing…

Q: Consider the following chemical reaction: Na2CO3(aq) + HCl(aq) -----------> NaCl(aq) + CO2(g) +…

A:

Q: Caffeine, a stimulant found in coffee, contains 49.5%% CC, 5.15%% HH, 28.9%% NN, and 16.5%% OO by…

A: Mass percentage of constituent elements of caffeine in the molal mass of 195 g/mol are: 49.5% by…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A:

Q: 9.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: 4 NH3 (g) + 7 O2 (g)…

A: 4 molesNH4 NH3 +702 G4NO24 NO + 6H₂OMy gives a proles Nomole NH₃ gines Imole No.17 g NHg gives 46 gm…

Q: A 10.68 g sample of compound that contains only carbon, hydrogen, and oxygen was analyzed through…

A:

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: Hydrothermal vents produce many types of compounds. One such compound consists of the elements…

A:

Q: 1. An organic compound is analyzed and found to be carbon 51.90%, hydrogen 9.80%, and chlorine…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: A 45.0-mg sample of boron reacts with oxygen to form 145 mg of the compound boron oxide. What is…

A: Empirical formula is the basic simple ratio formula of a molecule after finding the moles of that…

Q: A 15-g sample of lithium is reacted with 15 g of fluorine to form lithium fluoride: 2Li + F2 →…

A: First convert mass into mole by diving molar mass respectively Then Calculate limiting reagent by…

Q: Mass of product…

A: Number of moles is defined as the amount of the substance divided by the molecular weight of the…

Q: The density of the 99.8 ml solution is 1,093 g/ml and it contains 12% KI by mass. This solution is…

A:

Q: Coke is an impure form of carbon that is often used in the industrial production of metals from…

A:

Q: Solvent Hydrogen Oceans Ponds Cooking Cleaning Boiling Freezing Properties Colorless Tasteless Oil…

A: The blanks are filled below:

Q: carbon-hydrogen-nitrogen compound when burned completely, a 0.312 g sample yields 0.458 g CO2 and…

A:

Q: A 4.73 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A:

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: empirical formula?

A: We can determine the empirical formula by taking the molar ratio of elements.  We can take the…

Q: Calculate the mass of copper that can be made from the combination of 15.0 g aluminum with 25.0 g…

A: Mole of Al in 15.0 g Aluminum is calculated as,                                               Mole…

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: The given molar mass of the elements are as follows:- H: 1.00784 g/mol O: 15.999 g/mol El: 156.31965…

Q: You weigh a dry flask, and place a chunk of solid into it, then weigh it again. You then fil the…

A:

Q: The compound cisplatin, Pt(NH3)2Cl2, has been studied extensively as an antitumor agent. It can be…

A: Given : Mass of K2PtCl4  = 0.4256 g Mass of NH3 =  0.2135 g

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

A:

Q: Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown…

A: Given: Percent mass of carbon = 67.31 %. Percent mass of hydrogen = 6.978 %. Percent mass of…

Q: Morphine sulfate used for severe pain relief is an opiate alkaloid isolated from the plant Papaver…

A: While writing the chemical formula, the number that represents the number of atoms is written as…

Q: A sample contains two metal oxides namely, Barium Oxide(153.34 g/mol) and Calcium Oxide(56.06 g/mol)…

A: Reactions involved are: BaO + H2SO4 -------->BaSO4 + H2O                                  (1) CaO…

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: what mass of hydrochloric acid in grams must have reacted with magnesium if 9.13 grams of hydrogen…

A: In a balanced chemical equation, all elements involved in reaction have equal number of atoms on…

Q: Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and…

A: Formula to calculate % composition:Mass % of element = mass of the element on the given formula /…

Q: A 106 g sample of an unidentified compound contains 32.04 g potassium (MW: 39.0 g/mol), 45.17 g…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A 6.40 g sample of a compound is burned to produce 8.37 g CO, 2.75 g HO, 1.06 g N, and 1.23 g SO.…

A:

Q: Elemental analysis of a sample containing only B and H shows that it contains 479.4 g of boron…

A:

Q: A compound containing selenium and fluorine is decomposed in the laboratory and produces 2.231 g Se…

A: wt. Of Se obtained = 2.231 g wt. Of  F obtained = 3.221 g Empirical Formula = To be determined

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A:

Q: Analysis of a 40 g sample of water revealed a mass percent for lead of 3.23%. Calculate the number…

A: Percentage by mass of the substance in the solution mixture can be expressed as the ratio of mass of…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A:

Q: A sample of a compound was found to contain 54 g of aluminum, 96 g of oxygen, and 6 g of hydrogen.…

A:

Q: Carbon tetrachloride was prepared by reacting 23.6 g of carbon disulfide and 47 g of chlorine gas.…

A:

Q: SiO2 (s)+ C(s)Si(s) + CO(9) a. SIO2(s) C(s)- Si(s) + |CO() > b. Liquid silicon tetrachloride is…

A:

Q: After heating, the anhydrous salt can be left on the bench several minutes before weighing * True…

A: As per our guidelines we can only solve first three sub-parts. Please resubmit the other questions…

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

A: From the mass of CO2 and H2O we can calculate moles of carbon, hydrogen and oxygen. Emperical…

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.