1. A compound has a molar mass of 86.18 g/mol, and the following percent compositions. Find BOTH the molecular formula and the empirical formula 83.62% for carbon and 16.38% for hydrogen.

Q: 20) Determine the percent yield if 1.35 grams of copper(I) carbonate is produced by reacting 1.50 g…

A: 20) The reaction is given as- Na2CO3+CuSO4.5H2O→CuCO3+Na2SO4+5H2O The mass of sodium carbonate…

Q: e reaction of 1.55 g of lead(II) nitrate with excess potassium  iodide gives 2.00 g of lead (II)…

A: Percentage yield = Actual yield / theoretical yield × 100

Q: A 1.00 gg sample of potassium bicarbonate is decomposed by heating. If the resulting potassium…

A: Given, A 1.00 g sample of potassium bicarbonate is decomposed by heating. Actual yield = 0.710g…

Q: What number of molecules (or formula units) are present in 2.93 g of each of the following…

A:

Q: Molar Masses A = 12.98 D = 13.43– X = 22.40–2 E = 19.26 Z = 4.032 mole mole G = 16.42 mole mole A…

A: Answer:- This question is answered by using the simple concept of determination of empirical formula…

Q: Combustion of 6.60 mg of an unknown acid produces 11.8 mg carbon dioxide and 4.82 mg of water. If…

A: First calculate the number of moles for C, H, and O. Use those moles and mass to calculate the molar…

Q: Calculate the number of formula units of calcium phosphate produced when 19.50 grams of calcium…

A: Given that,  19.50 grams of calcium fluoride reacts with excess of iron (II) phosphate  We need to…

Q: Unbalanced equation 1. Given the following reaction: Si (s) + CI 2(g 35g SICI4 (1) ?g 56g When 56g…

A:

Q: A sample of pure silver has a mass of 15.4 g. Calculate the number of moles in the sample and silver…

A:

Q: РО Ammonium phosphate ((NH), PO, is an important ingredient in many solid fertilizers. It can be…

A:

Q: Please help me solve the following question, explain it and pls pls make sure everything is correct,…

A:

Q: 40) For an experiment, the decomposition of 1.500 g of baking soda gave 0.300 L of carbon dioxide…

A: The percent yield can be calculated as follows, %yield = volume of CO2 obtainedvolume of CO2…

Q: A 1.00-g sample of potassium bicarbonate is decomposed by heating. If the resulting potassium…

A: Given details, The balanced chemical equation, 2KHCO3 → K2CO3 + CO2 + H2O The actual yield = 0.725 g…

Q: A sample of copper wire with a mass of 1.659g is heated with excess powdered sulfur until the copper…

A: Weel know that ,  Empirical formula represent the simplest ratio of all atom present in the molecule…

Q: Before going to lab, a student read in his lab manual that the percent yield for a difficult…

A: Given that: the  actual percent yield =  41% of the theoretical yield  theoretical yield  =  88.00…

Q: 3. Write a balance equation for the following reactions: a. Aqueous sodium carbonate with aqueous…

A:

Q: For a theoretical yield of 6.7 g and actual yield of 4.57426 g, calculate the percent yield for a…

A: We have to predict the percentage yield.

Q: QUESTION 9 Which of the following statements is true? O A. The smallest mass of reactant in a…

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly…

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: (1)The amount of carbon and hydrogen is calculated from the grams of CO2 and H2O

Q: Formula Amount of Molar Mass of Amount of Samples units or molecules mass(g/mol) sample(g) atoms…

A:

Q: me: Gr. & Sec: CN: THE PERIODIC TABLE OF ELEMENTS IIA 2 55 Atomic Number Cs Chemical Symbol 132.91…

A: Which of the following serves as basis of the mass of final product obtained in a chemical reaction.

Q: Calculate the percent yield of the following. 3.) The theoretical yield in a reaction is 49.3g and…

A: A stoichiometric reaction is a quantitative reaction where a relation is established between the…

Q: Problem #4: Interpret reactions in terms of representative particles, then write balanced chemical…

A: 4. a) The carbon atom combined with hydrogen to form methane. The equation for the balanced chemical…

Q: STARTING AMOUNT X Determine the quantity of moles of propylene (C3H6) in 25.0 ADD FACTOR x( ) 25.0…

A: Given mass of C3H6 = 25.0 g Molar mass of C3H6 = 42.09 g/molAs we know ,No. Of moles =

Q: Prove that the statement is correct, give the solution and formula of the problem  In a chemical…

A: Given that, Theoretical yield=45.9g Actual yield=42g Percent yield=93% This statement is correct or…

Q: Aluminum sulfate is analyzed, and the sample contains 0.0672 moles of sulfate ions. How many moles…

A: The formula of Aluminum sulfate is Al2(SO4)3.

Q: Use the References to access important values if needed for this question. According to the…

A: Given -> Weight of Ca(OH)2 = 31.2 gm -> Sulphuric acid is in excess.

Q: 1.ln the preparation of aspirin, 6.0 grams of salicylic acid was made to react with acetic anhydride…

A: Mass of salicylic acid = 6.0 grams Mass of aspirin (Actual yield )= 4 grams  % yield of aspirin = ?…

Q: provide an example of how to calculate empirical formula and then how to find molecular formula from…

A: In the determination of molecular formula, first step is the determination of its empirical formula.

Q: C3Hg(g)+___O2(g)-->3CO2(g)+4H2O(l) How many O atoms are present on the right side of the chemical…

A: The given chemical equation is,  C3H8 (g) + ___O2(g) → 3CO2(g) + 4 H2O(l)

Q: Barium sulfate is used when X-rays of the gastrointestinal tract are made. Barium sulfate can be…

A: Unbalanced chemical equation between barium chloride and dilute sulfuric acid is:  BaCl2 (aq)    +…

Q: Calculate the percent yield of the following. 1. The theoretical yield in reaction is 8.50g and the…

A:

Q: What is the term for a digit in front of a chemical formula that helps to balance a chemical…

A: We know that, Balanced equation means number of atom in reactant side is equal to number of atom in…

Q: the mass of the product is 0.9282, and the theoretical yield is 1.37g Calculate the percent yield…

A: Autual product= 0.9282 gram

Q: In an actual experiment using 10.0 g of magnesium and 10.0g oxygen, 14.3 g of magnesium oxide was…

A:

Q: In acidic solution, the nitrate ion can be used to react with a number of metal ions. One such…

A:

Q: According to the following reaction, how many grams of hydrofluoric acid will be formed upon the…

A: The given reaction is as follows:    SiF4(s) + 2H2O(l) → 4HF(aq) + SiO2 The given mass of water =…

Q: Gaseous methane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water…

A: For a reaction, the theoretical yield is the yield of the product calculated using the…

Q: When solving problems involving stoichiometric coefficients, the first step is to make sure you have…

A: Number of mole of NH3 = 2.87 mol Number of moles of O2 = 6.48 mol

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.