An oxide of chromium is made up of 5.20 g chromium and 5.60 g oxygen What is the empirical formula of the oxide? (Note: An oxide of nitrogen contains 63.1% oxygen and has a molar mass of 76.0 g/mol.) _____4. What is the empirical formula for this compound? _____5. What is the molecular formula of the compound?

Q: 2. One of the main chemical components of chocolate is made up of the following: 46.67% C, 4.48% H,…

A: A) The empirical formula of the compound is, C=46.67 g/12 g/mol C=4 mol H=4.48 g/ 1 g/mol H=4 mole…

Q: A 2.144-g sample of phosgene, a compound used as a chemical warfare agent during World War I,…

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Q: Arsenic reacts with oxygen to form a compound AsxOy. If 2.354 g of arsenic forms 3.611 g of the…

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Q: An ionic compound MX3 is prepared according to the following unbalanced chemical equation.   M  +…

A: The number of moles of X2 (nX) is calculated using equation (1) in which N is the number of…

Q: Be sure to answer all parts. Cisplatin (right), or Platinol®, is a powerful drug used in the…

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Q: how many ions or atoms of each element are in 160.5 g of the following substances?  a) H2 _?_ x1025…

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Q: Fructose is a very sweet natural sugar that is present in honey, fruits, and fruit juices. It has a…

A: Given that, %C= 40% %H=6.7% %O=53.3% Molar mass of Fructose=180.1 g mol-1 Then,

Q: What is the empirical formula of a compound found to contain 40.0 g N, 14.4 g H, and 45.7 g O?…

A: Given;

Q: 50 Soap, vitamin Cand orange juice The main constituent of soap has a formula C18HON The formula of…

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Q: 1.) Iron (II) sulfate, FeSO4, is prescribed for the treatment of anemia. a.) How many moles of…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: 1. Isopropyl alcohol, a substance sold as rubbing alcohol, is composed of C, H, and O. Combustion of…

A: We can solve the problem by determining the moles of C, O and H present in the starting material.…

Q: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: 4) Calculate the number of moles of each option-

Q: 1- A Sample of a compound containing only carbon, chlorine, and fluorine was analyzed and found to…

A: Given: Mass of carbon = 0.323g Mass of Cl = 2.38g Mass of F=0.255g We know that Molar mass of…

Q: Calculate the moles of glucose in 1.0253 g of glucose, C6H12O6. Then calculate the moles of each…

A: Given :-  Mass of glucose = 1.0253 g  To calculate :-  Number of moles of glucose and also determine…

Q: A certain compound containing nitrogen and oxygen is found to have 1.75 g of N for every 1.00 g of…

A: Empirical formula :-  The formula which shows only relative number (simple ratio) of  atoms of…

Q: One of the key ingredients in certain cosmetics is Pb2Cl2CO3 and is created as shown in the reaction…

A: Given mass of CO2= 4.87 g  Given mass of H2O = 2.7 g  Given mass of NaCl = 0.46 g  Given mass of PbO…

Q: A compound is found to contain 23.3% magnesium, 30.7% sulfur, and 46.0% oxygen. What is the…

A: Empirical formula :- The simplest formula which shows only relative number of atoms of different…

Q: Glycine is an amino acid with the formula C, H, NO,. Determine the number of moles of carbon in…

A: Given  Formula of Glycine = C2H5NO2 Mass of glycine  = 62.83 gram  Number of mole of carbon = ?

Q: 6. A compound is composed of 28.03% Mg, 21.60% Si, 1.16% H, and 49.21% O. a) Working only with these…

A: Given, % H = 1.16  % O = 49.21  Si = 21.60 Mg = 28.03

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: Chlorine gas chemically reacts with 5.20 grams of titanium to produce 12.82 grams of titanium…

A: We have to predict the empirical formula.

Q: A mixture consisting of 12.8 g of calcium fluoride and 13.2 g of sulfuric acid is heated to drive…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: A 3.87g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.30x1022 N2O…

A: a) 1 molecule of N2O contains 2 nitrogen atoms, Hence, 5.30 ×1022 N N2O molecules will contain…

Q: A mystery white powder is made up of 27% C, 9% H, and 64% F.  What is its empirical formula?

A: Given measurements, %C = 27 %, molar mass of C =12 g mol-1 %H=9% , molar mass=1.008 g mol-1 %F=64 %…

Q: A sample of a substance contains 2.14% hydrogen, 29.80% nitrogen, and 68.06% oxygen. What is the…

A: Empirical formula of a compound represents the simplest whole number ratio of elements present in…

Q: Polymers are large molecules composed of simple units repeated many times. Thus, they often have…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Prozac, C17H18F3NO, is a widely used antidepressant that inhibits the uptake of serotonin by the…

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Q: 212.01) el1.008) Fo-4lo. Potassium manganate is a dark green, crystalline substance whose…

A: The given data contains,       potassium =39.6%      manganese =27.9%      oxygen =32.5%

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

A: Given mass of sample is 10.68 g. Upon combustion it gives 16.01 g CO2 and 4.37 g H2O

Q: Which of these are correct/ true?  A. 1 mole of He has the same amount of atoms than 1 mole of Ca B.…

A: There are some correct statements where are written with explanatios.

Q: How many atoms are there in 75 molecules of acetic acid, CH3CO2H? A compound contains, by mass,…

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Q: Determine the number of moles of carbon in 41.95 g41.95 g of leucine.

A: Given :- mass of leucine is 41.95 g  To calculate :- number of moles of carbon

Q: Ethanol has a molecular formula of CH3CH2OH. a.    What is the molar mass of ethanol? b.    What is…

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Q: Using the following eq CH3NH2 (g)+ O2 (g)→ CO2 (g)+ H2O(g)+ N2 (g) 4.0 x 104 mol CH3NH2 contains…

A: All calculations  explained  in Handwritten solution

Q: Chemistry a student was given a sample of CaCO3 * XH2O to find the empirical formula. she measured…

A: CaCO3 .xH2O  upon heating  will lose its water and this a given sample will lose some of its mass…

Q: 5. Which statement is NOT true? a. One mole of a substance contains a fixed number of particles. b.…

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Q: 8.00 g of iron when burned in air yields 11.44 g oxide. What is the empirical formula of this oxide?…

A: mass of oxygen= mass of oxide - mass of Fe(iron)

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: The chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE) is…

Q: what is the empirical formula of 6.21g carbon, 1.03g hydrogen and 2.76g of oxygen

A: Emperical formula:- It is the different atom's ratio present in a compound. number of mole(n)=mass…

Q: 1. How many hydrogen ions (H+) are in a mole? 2. What is the mass of one mole of H+ ions, in grams?,…

A: Introduction Always remember that 1 mole = 6.022 x 1023 atoms or molecules or ions. The correct…

Q: c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A: Given  mass % of C = 30.27 %  total mass of compound = 1.367 g  mass of SO2 = 1.765 g    Required…

Q: (c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A: We have to find empirical formula for given compound

Q: The carat is the unit of mass used by jewelers, and it is exactly 200 mg. How many carbon atoms are…

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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: 6. A compound is composed of 28.03% Mg. 21.60% Si, 1.16% H, and 49.21% O. a) Working only with these…

A: The empirical formula is the simplest ratio of integers for the atoms present in the compound.  The…

Q: 3. An oxide of chromium is made up of 5.20g chromium and 5.60 g oxygen. What is the empirical…

A: Given,  Mass of Cr = 5.20 g  Mass of O = 5.60 g What is the empirical formula of the oxide = ?

Q: A 5.325-g sample of methyl benzoate, a compound used in the manufacture of perfumes, is found to…

A:

Q: 98. A sample of an ionic compound that is often used as a dough conditioner is analyzed and found to…

A: (98) Following information given in the question - Mass of potassium = 7.591 g Mass of Bromine =…

Q: Q 38

A: The empirical formula of a chemical compound can be derived from some knowledge:- A:- Percentage…

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.