A 25.75 g sample of nitrogen oxide was found to contain 6.68 g of nitrogen and the rest oxygen calculate the % composition of the compound.

Q: Complete the following calculations and upload your work. Determine the number of moles of sulfur…

A: Sulfur pentoxide : SO5 Molar mass of S = 32 g/mol Molar mass of O = 16 g/mol

Q: A 0.858-g sample of copper was reacted with oxygen to form 1.074 g of copper oxide. Determine the…

A: Given, mass of copper sample = 0.858 g Mass of copper oxide formed = 1.074 g Empirical formula of…

Q: a 22.5 grams sample of ammonium carbonate contains_____________moles of ammonium ions.

A: Conversion of mass to moles of ammonium carbonate:

Q: If a sample of barium hydroxide has a mass of 5.190 g, determine the number of moles of the compound…

A:

Q: A compound containing nitrogen and oxygen is decom-posed in the laboratory and produces 1.78 g of…

A: Given data contains, Mass of nitrogen is 1.78 g. Mass of oxygen is 4.05 g.

Q: A compound was analyzed and was found to contain the following percentages of the elements by mass:…

A:

Q: A compound is found to contain 42.88 % carbon and 57.12 % oxygen by mass. What is the empirical…

A: Given: Percent mass of carbon = 42.88 % Percent mass of oxygen = 57.12 % Molar mass of C = 12 g/mol.…

Q: A compound contains sulfur, oxygen, and chlorine. Analysis shows that it contains 26.95% sulfur and…

A:

Q: Find the empirical formula of a compound, given that the compound is found to be 47.9% zinc and…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: The analysis of 1.00 g sample of phosphorous oxide, with a molar mass of about 284 g/mol, was found…

A: Given information: Mass of sample = 1.00 g Mass of phosphorus  = 0.44 g Mass of oxygen = 0.56 g…

Q: Consider samples of phosphine (PH3), water (H2O), hydrogen sulfide (H2S), and hydrogen fluoride…

A:

Q: Determine the number of moles (of molecules or formula units) in sample. 195 kg CaO

A: In the above problem we need to calculate the number of moles of CaO. Now, number of moles of solute…

Q: Consider the following compound: Sr3(PO4)2 *4H2O   -Calculate the theoretical percent strontium by…

A: The mass percent of strontium in Sr3(PO4)2 * 4H2O is calculated as,

Q: completely

A:

Q: 1. A 4.00g sample of iodine was reacted completely with excess bromine. The mass of the compound…

A: We have to predict the empirical formula of compound.

Q: Analysis of a compound shows that it contains 43% Ti and 57% S.  Determine the empirical formula of…

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

Q: Calculate the mass percent composition of lithium in lithium phosphate?

A: The mass percent composition of an element is calculated using the molecular formula. It is…

Q: A 18.0 g sample of a compound containing C, H, and O was burned in air. The products were 26.4 g of…

A: Given,

Q: Combustion of 10.68 mg of the compound yields 15.92 mg CO2 in 4.89 mg each to the molar mass of the…

A:

Q: What information do we need to determine the molecular formula of a compound from the empirical…

A:

Q: Determine the number of moles (of molecules or formula units) in sample. 25.5 g NO2

A: The given mass of NO2 = 25.5 g Molar mass of NO2 = 46 g/mol.

Q: A compound with a molar mass of 60g/mol is 40.4% carbon, 6.7% hydrogen and 53.3% oxygen (by mass).…

A: An empirical formula is defined as the simplest or most reduced whole number ratio of atoms present…

Q: Analysis of a sample showed that it contained 68.3% lead, 10.6% sulfur, and 21.1% oxygen. What is…

A:

Q: in the laboratory, a student weighs out 0.0852 g of cobalt on balance. how many atoms of cobalt are…

A: We have 0.0852 g of Co , we have to calculate the atoms of cobalt in the sample.

Q: A sample of indium chloride weighing 0.5000g is found to contain 0.2404 g of chlorine. What is the…

A: Given that , Mass of indium chloride= 0.5000g Mass of Chlorine= 0.2404 g

Q: What is the percent composition by mass (to one decimal place) of Oxygen and hydrogen in 1 mol of…

A: The mass of 1 mol of atoms is called atomic mass For example :-  Atomic mass of H = 1.0 g/mol Atomic…

Q: Calculate the empirical formula of the compound

A: To calculate the emperical formula we have to follow the following steps as described in step 2 of…

Q: A compound contains 12.8% carbon, 2.1% Hydrogen, and 85.1% bromine. Calculate the empirical formula…

A: Since the compound is having only carbon, hydrogen and bromine. Hence the empirical formula of the…

Q: If a sample of barium hydroxide has a mass of 5.190 g, determine the number of moles of the compound…

A: Given,  Mass of Ba(OH)2 = 5.190 g a). Determine the number of moles of sample = ? b). Determine the…

Q: Determine the chemical formula of compound and use it to calculate the mass percent composition of…

A: The chemical formula is defined as a representation of a compound and the number of atoms present in…

Q: What is the empirical formula for this compound?

A: Number of moles = mass/molar mass  Molar mass of Oxygen = 16 g/mol  Molar mass of nitrogen = 14…

Q: Calculate the mass % of O in lithium permanganate.

A: Mass percentage is the term used to calculate the concentration of any element in the given…

Q: Without doing any calculations, determine the sample will contains the greatest amount of the…

A: On knowing the masses of elements, which element have greater number of moles can be identified…

Q: the empirical formula of a compound

A:

Q: Order them in decreasing order of the amount of oxygen. = Chlorate = Hypochlorite = Chlorite E…

A:

Q: A compound is found to contain 37.32 % phosphorus, 16.88 % nitrogen, and 45.79 % fluorine by mass.…

A: Empirical formula of a compound can be defined as the simplest whole number ratio of atoms  present…

Q: 59. A 0.5998-g sample of a new compound has been analyzed and found to contain the following masses…

A: Empirical formula can be calculated as follows -  First of all calculate the no. Of moles for each…

Q: A 22.15 gram sample of cobalt is heated in the presence of excess oxygen. A metal oxide is formed…

A:

Q: A 21.69 gram sample of copper is heated in the presence of excess oxygen. A metal oxide is formed…

A: * Mass of copper (Cu) = 21.69 g After heating this copper , metal oxide is formed with a mass of…

Q: A compound is found to contain 11.21 % hydrogen and 88.79 % oxygen by mass. What is the empirical…

A: empirical formula : empirical formula of a compound is the simplest positive integer ratio of atoms…

Q: How many grams of the insecticide calcium chlorate must be measured if a sample is to contain 5.79 g…

A: Formula of calcium chlorate = ca(clo3)2 Molecular mass of calcium chlorate is 207g

Q: How many formula units are equal to 1.80 moles of magnesium iodide? Round to two decimal places.

A: In Ionic compound there is no existence of molecule because cations and anions are strongly…

Q: Which sample contains the greatest number of atoms. A sample of Ba that contains 6.72x1022 atoms or…

A: Number of atoms in Ba in Ba Sample = 6.72 × 1022 atoms Number of mole in Ti in sample = 4.94 mole…

Q: A 73.16 g sample of an interesting barium silicide reported to have superconducting properties was…

A: Given information:Total mass of the sample of barium silicide = 73.16 gMass of barium = 33.62 g

Q: Calculate the number of atoms in 0.0015 moles of Cu.

A:

Q: Calculate the mass of 17 moles of iron(III) carbonate.

A: Answer

Q: A student calculated the number of moles of carbon dioxide present in a 100.0 g sample of a gaseous…

A: Percentage composition of an element is calculated from its molecular mass. Percentage composition…

Q: percent composition

A:

Q: Consider a sample of carbon tetrafluoride that contains 1.01 × 10²⁴ atoms of fluorine. Determine…

A: Given:

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.