A molecule contains 16.623% hydrogen, 2.078% oxygen, and no other element except carbon. What is the empirical formula? C = 12.01 g/mol H 1.01 g/mol O 16.00 g/mol = Make sure that you use the letter O not the number O for oxygen please! The computer system will not recognize zero as 'O! Make sure that your formula has a C first, then a H in the middle, then the oxygen. You will not be able to do subscripts so If the formula was CH₂O, you will need to type CH2O A

Q: A model of the ethanal molecule is shown in the window below. progress ball & stick- + labels HO a.…

A: 1 mole = 6.022 x 1023 atoms/molecules/entities

Q: dentify each compound as Empirical or Molecular. Write your answer on the space  provided.

A: 6) Methyl acetate (C3H6O2) The given compound is molecular formula.       7) Ammonia (NH3) The given…

Q: Fictional, not on PT. I found a family of compounds that contain only A, X and Z elements in…

A:

Q: Be sure to answer all parts. Calculate the percentage composition by mass of each of the elements in…

A:

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid, H.PO.?

A: One mole of H3PO4 = 6.022 × 2023 formula…

Q: Calculate the number of moles in each sample. Express your answer with the appropriate units. 71.5 g…

A: The number of moles of each sample can be calculated asNumber of moles=mass/molar massCHCl3Weight of…

Q: A lab analysis of an organic compound showed it is made up of 60.00% C, 5.75% H, and 34.25% O. If…

A: Given, C = 60.00 %  H = 5.75 %  O = 34.25 %  Molecular mass = 560.56 g/mol

Q: Mole 1. How many significant figures are in the number 0.0840900? 2. Write the following number in…

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

Q: Moles, Molecules, and Grams Worksheet and Key F # Atoms Or # Molecules Use Avogadro's Number 1 mole…

A:

Q: A compound has the chemical formula CaX2, where X is an unknown nonmetal. The percent by mass of Ca…

A: Percentage by mass of compound means if total compound is 100 g then that component has mass…

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: Determine the number of molecules of Cr.O. that form when 1.34 x 10 gof oxygen completely reacts…

A: Given: Mass of Oxygen = 1.34 x 103 g Given Reaction is  To determine- Number of molecules of Cr2O3

Q: up 9. The mass reference used in molar mass values in the modern periodic table is based on the…

A: We have find out the molar mass of carbon. Note~Since you have posted multiple questions, we will…

Q: Terephthalic acid, used in the production of polyester fibers and films, contains 57.83% carbon,…

A: To determine the molecular formula of terephthalic acid, you can first find the empirical formula…

Q: An organic compound contains 0.5711 g carbon, 0.0958 g hydrogen, and 0.3330 g nitrogen. The molar…

A: Given: mass of carbon = 0.5711 g mass of hydrogen = 0.0958 g mass of nitrogen = 0.3330 g. The molar…

Q: 12. Traumatic acid contains 63.13% carbon, 8.830% hydrogen, and 28.03% oxygen. Its molar mass is…

A: The molecular formula represents exact number atoms present in a compound. An empirical formula…

Q: A compound has the empirical formula C6H7N and a formula mass of 186.24 g/mol. What is the molecular…

A: Answer: Option d. C12H14N2 is the correct molecular formula. Given,The empirical formula=C6H7N…

Q: Perform each of the following calculations.  You must show your work to receive credit and must must…

A: No of atom/molecules = mole × Avogadro number

Q: An unidentified ionic compound contains approximately 29.85 g sodium, 67.50 g chromium, and 72.67 g…

A:

Q: What are the molecular and empirical chemical formulas of a compound made up of these molecules? H H…

A: The chemical formula that represents the number of atoms of all the elements present in the molecule…

Q: One relatively common compound used in plastics manufacturing is composed of 24.3% carbon, 4.1%…

A: Given that One relatively common compound used in plastics manufacturing is composed of 24.3%…

Q: This is the chemical formula for carvone (the chemical that gives spearmint its flavor): C10H14O An…

A: Carvone has folloing molecular formula C10H14O So, 10 moles Carbon contains per mol of oxygen.

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

A:

Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

A:

Q: Leucine is an amino acid with the formula C,H,NO,. Determine the number of moles of carbon in 60.08…

A:

Q: 16 the m, you iave 30 minutes to upload your work on Canvas. Question 14 A student determines the…

A:

Q: HH H-C-0-c-c-c-c-c₁ но н 11 The empirical formula has [Select] atoms. The empirical formula has…

A: An empirical formula is the simplest whole number ratio of atoms in a molecule or compound. It…

Q: QUESTION 2 a. How many moles of Al203 are in 28.0 g of Al203? Report your answer to the correct…

A:

Q: 2. a. What is the mass of one mole of caffeine (C8H10N4O2)? Show your work. Box your final answer.…

A: We know, molar mass of : C = 12.01 g/mol , H = 1.007 g/mol , N = 14.007 g/mol , O = 16.00 g/mol  The…

Q: Please assist with number 3

A: We are authorized to answer three subparts at a time since you have not mentioned which part you are…

Q: Determine the molecular formula for the compound with empirical formula P2O5 and molar mass of 284…

A: Empirical Formula It tells about the relative composition of elements in a molecule. Formula gives…

Q: How many moles of fructose are in a sample containing 1.43 x 1024 Molecules of fructose? (Answer…

A: We will solve this problem with the help of Avagadro's number. One mole of a compound contain…

Q: portant valuės if needed for this question. The amino acid asparagine has the molecular formula…

A: Determine number of atoms in both compound and then equate them because both must have similar…

Q: Give the percent composition of all elements present in the following compounds. Follow this format…

A: The percent composition is calculated by the formula, % composition=Molar mass of elementMolar mass…

Q: 39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of…

A: To solve this problem we have to calculate the number of molecules of the given sample .

Q: How many moles (of molecules or formula units) are in each sample? 19.3 g NO2 Express your answer…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Oxygen gas is a diatomic molecule. How many mole are contained in 4.23×10exp14 molecules of oxygen…

A: This problem can be solved by knowing that one mole of any substance contains6.022×1023 particles.

Q: A compound is 54.53% C, 9.15% H, and 36.32% O by mass. What is its empirical formula? Insert…

A:

Q: Part 3: Mass to moles. Convert mass to moles then moles to number of atoms. Use the periodic table…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: How many formula units are present in 5 moles of Al2S3 ? [?] x 10 fun. Al₂S3 Make sure your answer…

A: Formula units are nothing but the number of atoms present in the particular moles of a compound. Use…

Q: B. Accutane is found to contain 79.95% C and 9.40% H with the remainder being oxygen. Its molar mass…

A: elements    percentage    atomic mass    moles=%/at. mass    simplest molar ratio        C…

Q: Writing Empirical Formulas from Chemical Formulas

A:

Q: Part A How many moles are in 20.0 g of CO2? Express your answer to three significant figures. 0.4…

A: Part A:- Carbon has a relative atomic mass of 12. Oxygen has a relative atomic mass of 16.…

Q: Part B The molecular formula mass of this compound is 210 amu. What are the subscripts in the actual…

A:

Q: 6. What is the molecular formula for a compound that is 85.6% carbon and 14.4% hydrogen if the…

A:

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.