Please answer questions 1 & 2 and show your work. 1. A 0.77 mg sample of nitrogen reacts with clorine to form 6.61 mg of a compound containing nitrogren and chlorine. Determine the emperical formula of the compound formed. 2. A compound has an emperical formula of C2H2N. Its actual molar mass is 312.29 g/mol. Determine the molecular formula.

Q: Part A A compound of X and Y is X by mass. The atomic mass of element X is the atomic mass of…

A: To determine the empirical formula , we need to determine mole ratio between X and Y. For this we…

Q: 5. Analysis of 20.0 g of a compound containing only calcium and bromine indicates that 4.00 g of…

A: Given, The mass of a compound is 20.0 grams The mass of the calcium in the compound is 4.00 grams

Q: A. Molar mass of an Element = Atomic mass of the Element Molar mass of a Compound = Molecular mass…

A: Given: Molar mass of C = 12.01 g/mol Molar mass of O = 16.00 g/mol Molar mass of Pt = 195.08 g/mol…

Q: A 2.00 g sample of an organic compound contains 0.675 g of carbon. How much carbon would a 4.00 g…

A: ◼️ Given that:  2.00 g of organic sample has 0.675 g Carbon  Carbon in 4.00 g of same organic…

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

A: Given that, 4.0 g of a compound X is made of carbon, hydrogen and perhaps oxygen. The molecular…

Q: 1. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: We can calculate the moles of any substance from the following formula : Moles of substance = mass…

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

A: Given: Mass of compound X = 1.50 g Molecular mass of compound X = 70 g/mol Mass of carbon dioxide =…

Q: 4. A different hydrate of nickel(II) chloride, NiCl2 • XH2O, decomposes to produce 45.5% water.…

A: The formula of given hydrate is NiCl2.XH2O. On the decomposition of hydrate, 45.5% of water is…

Q: 1. Perform the following: a. Write the formula for copper (II) phosphate.. b. Calculate the…

A: Here we calculate the chemical formula using the charge neutral method. Then we calculate molar mass…

Q: We have two 22.4 liter flasks, one containing H2 gas and one containing CO2 gas. The gases are at…

A: At STP (standard temperature and pressure), 1 mole of gas occupies 22.4 L of volume.

Q: 8.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: The molar mass of Fluorine (F) is 19.0 g/mol. Calculate the molar mass of F2. O 6.31 x 10-23 g/mol…

A: Molar mass of a compound is the sum of individual elements multiplied by their molar masses.

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

A:

Q: will

A:

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

A: Step 1: Step 2: Step 3: Step 4:

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: A 115 g sample of dry ice, CO₂, contains how many moles? 3.22 x 103 mol 4.11 mol 28.0 mol 2.61 mol…

A:

Q: A 4.503 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A: The objective of the question is to calculate the-Empirical formulaMolecular formula

Q: A sample of iodine solid has a mass of 32.9 grams. How many I2 molecules are there in the sample?…

A: A mole is defined as one-gram formula or molecular weight of the compound. A mole is also defined as…

Q: 5.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: 19. How many different elements are involved in this reaction? 20. How many atoms are on the left…

A: This is the equation of the combustion of methane. In the equation, right side is the product and…

Q: a. A 9.475 gram sample of copper is heated in the presence of excess chlorine. A metal chloride is…

A: Given question related to calculating empirical formula of metal halide formed when metal is heated…

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

A:

Q: A hydrated sample of sodium hydrogen phosphate (Na2HPO4) was found to contain 47.05% water by mass.…

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

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: A sample of trifluoroacetic acid, C2HF3O2, contains 60.9 g of oxygen. Calculate the mass of the…

A: Sample of trifluoroacetic acid molecular weight                          = (12× 2+ 1+ 3×19+ 16×2) g…

Q: In order to calculate the percentage composition by mass of a compound, it is necessary to know:…

A:

Q: Ethanol has a molecular formula C2H5OH. A sample of ethanol has a mass of 2.3 grams. The sample was…

A: Given: Mass of C2H5OH = 2.3 g. The balanced combustion reaction taking place is given by, =>…

Q: 8.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given : The compound is made of carbon, hydrogen and oxygen. Mass of compound burned = 8.50 g Mass…

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

A: We know that for 1 mole of any chemical compound/species,there are Avogadro's number of molecules…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: For the given compound, XBr3 Mass of sample = 4.712 g Suppose the mass of 1 mole of X be 'm' grams…

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.