4) A. Determine the empirical formula of a compound composed of 66.70g carbon, 3.70g hydrogen, and 29.60g oxygen. B. Determine its molecular formula if the molar mass is 162.2 g/mol

Q: Consider a compound that produces 5.0 g Al and 19.7 g Cl a. What is the empirical formula of this…

A: Given that : Mass of Al = 5.0 g Mass of Cl = 19.7 g The molar mass of Al is 26.98 g/mol. The molar…

Q: 1. Hydroxyapatite, Ca5(PO4)3(OH), is a naturally occurring mineral in the bone. A. Calculate the…

A: A question based on mole concept that is to be accomplished.

Q: a. Two compounds have the same composition: 92.25% C and 7.75% H. Obtain the empirical formula…

A: Empirical formula is the simplest formula of a compound where atoms of participating elements are…

Q: 9. A 1.35 g sample of a substance containing carbon, hydrogen, nitrogen, and oxygen was burned to…

A: Total weight of the substance is 1.35 g The compound consists of C,H,O & N. Amount of H2O =…

Q: 4. A sample containing 58.51 g manganese (Mn) is treated with an excess of sulfuric acid (H2SO4)…

A:

Q: 2. Calculate the number of molecules of water in a 500.0-mL glass of water. (Note: assume density of…

A: • As per bartleby guidelines, I need to solve only first question in case of multiple questions…

Q: II. Empirical Formula 1. A compound contains 40.92 % C, 4.58% H, and 54.50% O by mass. What is the…

A: Determination of empirical formula The percentage composition of elements present in given compound…

Q: Suppose that the percentage yield of BrCl is 90.0%. How much BrC can be made by reacting 338 g Br2…

A:

Q: Isopropyl alcohol, sold as rubbing alcohol, is composed of C, H, and O. Combustion of 0.255 g of…

A: 1 mole of CO2 (44 g) contains 1 mole of C (12 g) and two moles of oxygen. The amount of Carbon and…

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: 3. Combustion Analysis: A sample of a blue crystal was found at an industrial laundry facility…

A: Given the combustion of 0.6250 g of the sample in presence of excess O2 gives 1.8546 g CO2(g) and…

Q: 9. How many sodium ions are contained in 1.64 g of Na3PO4? The molar mass of Na₂SO3 is 163.94 g/mol.…

A:

Q: 16. A metal has the mass of 12.00 g and 5.850 x 1022 atoms. Calculate molar mass of the metal. O…

A:

Q: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

A:

Q: 1. Hydroxyapatite, Ca5(PO4)3(OH), is a naturally occurring mineral in the bone. A. Calculate the…

A:

Q: empirical

A:

Q: 1. In a certain compound of copper and oxygen, CuxOy, we find that a sample weighing 0.6349 g…

A: Molar mass of copper = 63.646 g/molMolar mass of oxygen = 16 g/molTotal mass of sample = 0.6349…

Q: 1. Complete and Balance the reaction. Include all states. If there is no reaction, write NO…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: a. A piece of iron metal with a mass of 42.5g is burned in the presence of oxygen. The resulting…

A:

Q: In a first expirement, a compound is analyzed and found to contain 85.63% C and 14.37% hydrogen by…

A: 1. atom % in samp;e mole Mole ratio (divided by smallest number of moles) C 85.63 85.63 /12 =…

Q: Calculate the mass of sodium chlorate that must decompose to form 6.5 g of oxygen. 2NaClO 3(s) →…

A: Consider the given information is as follows; Reaction:      2 NaClO3(s)   → 2 NaCl(s)   +     3…

Q: Burning a 0.1000-g sample of a carbon-hydrogen-oxygen fuel compound in the presence of oxygen yields…

A: Given, mass of sample =0.1000 g CO2(yielded)=0.1953 gH2O(yielded)=0.100 g

Q: 5. Chloral hydrate (C2H3C1302) is a drug formerly used as a sedative and hypnotic. It is a compound…

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

Q: 1. A compound is found to contain 63.52 % iron and 36.48% sulfur. Find its empirical formula. 2. A…

A:

Q: a. Calculate the molar mass of P2O5. Molar mass = g/mol b. Calculate the molar mass of Caz (PO4)2 .…

A: Molar mass is the weight of one sample. First one is Phosphorus pentaoxide -contains 2 phosphorus…

Q: 9. Isobutylene is a hydrocarbon used in the manufacture of synthetic rubber. When 0.847 g of…

A:

Q: a. Determine the empirical formula of a compound with 63.12% Carbon, 8.85% Hydrogen, and 28.03%…

A: a. Let 100 g be the total mass mass of carbon = 63.12 g mass of hydrogen = 8.85 g mass of oxygen =…

Q: a. Calculate the molar mass of P2O5. Molar mass = g/mol b. Calculate the molar mass of Ca3 (PO4)2 -…

A:

Q: 1. In a reaction of phosphorus and chlorine, both species is 25.0 g, which of the following…

A: Limiting reagent is the reagent which are present in less amount and consume all in reaction.

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 109⁹ moles of…

A: D) Calculating the mass (in grams) of the following sample: 25) 238 moles of lead 26) 1.54 × 10-9…

Q: What number of molecules (or formula units) are present in 2.25 g of each of the following…

A:

Q: 9. Vanillin, the dominant flavoring in vanilla, contains C, H, and O. When 1.05 g of this substance…

A: The empirical formula of vanillin is C8H8O3

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.