Determine the Empirical Formula. (5pts each) 1. What is the empirical formula of a compound which contains 13.5 g Ca, 10.8 g 0, and 0.68 g H?

Q: compound

A: The first step is to calculate the molar mass of KNO3. It can be calculated as follows: Molar mass=…

Q: What is the empirical formula of a compound composed of 35.1 g of potassium (K) and 7.18 g of oxygen…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: A sample of a compund made entirely from copper and oxygen was founf to have a total mass of…

A:

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 0.338-g sample of antimony was completely reacted with 0.295 g of chlorine gas to form antimony…

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Q: A muffin recipe calls for cream of tartar, or potassium hydrogen tartrate, KHC4H4O6(s). The amount…

A:

Q: A compound with a molar mass of 92g/mol contains 0.3955g of nitrogen and 0.9045g of oxygen.…

A: Given values, Molar mass of compound = 92 g/mol Mass of nitrogen = 0.3955 g Mass of oxygen = 0.9045…

Q: A compound containing selenium and fluorine is decomposedin the laboratory and produces 2.231 g of…

A: The given data contains, mass of selenium = 2.231 g. mass of fluorine = 3.221 g.

Q: a 50.0 g sample of lead oxide PbO2 contains how many moles?

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: When 0.2004 g of calcium is heated in pure nitrogen gas, the sample gains 0.04670 g of nitrogen.…

A: The mass of calcium is = 0.2004 g The mass of nitrogen is = 0.04670 g The empirical formula of…

Q: Citric acid, the compound responsible for the sour tasteof lemons, has the elemental composition: C,…

A: Empirical formula of a compound may be defined as the formula which gives simplest whole number…

Q: How many grams of K2CrOa are found in a sample containing 0.094 moles of this compound?

A: The no. of moles and weight of the compound are related as Moles = weight(in grams) / molecular…

Q: A 0.235 g sample of Manganese  (Mn) was heated in a crucible  and produced   0.372 g of  a compound…

A: Given: mass of Mn = 0.235 g mass of MnxOy compound = 0.372 g molar mass of Mn = 54.938 g/mol molar…

Q: ne empirical formula of each

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

Q: A 10.98 g sample of a compound contains 7.01 g of iron, Fe, 1.30 g of phosphorus, P, and oxygen, O.…

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Q: A compound contains 6.0 g of carbon and 1.0 g ofhydrogen, and has a molar mass of 42.0 g/mol. What…

A: The empirical formula is the chemical formula of the simplest ratio of the number of atoms of each…

Q: what is the empirical formula of a comcompound that contains only iron and oxygen and is 22.27%…

A: Empirical formula :- The formula which gives the simplest wholenumber ratio of atoms of various…

Q: Determine the empirical formula for a compound that contains C, H, and O. It contains 52.14% C, and…

A: % of H = 100-52.14-34.73= 13.13  Suppose we have 100 g sample . So moles of C =…

Q: What is the empirical formula of a compound of carbon, hydrogen, and Oxygen that contains 51.56% and…

A: Given:: %C = 51.56%  %H = 14.09 % then, empirical formula = ?

Q: 43.5 mol of P010 contains how many moles of P? mol P

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Q: Calculate the grams of BaCl2  moles BaCl2= 0.0024

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

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

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Q: A compound is found to contain 31.14 % sulfur and 68.83 % chlorine by mass. whats the empirical…

A: Since, you have post a question with 2 sub-parts but the information for second part to be solved is…

Q: A 15.2415.24 g sample of a compound contains 9.739.73 g of iron, Fe,Fe, 1.801.80 g of phosphorus,…

A:

Q: If 0.00124 moles of acetic acid is present in your 2.00 mL sample, how many grams of acetic acid are…

A: Given - Moles of acetic acid = 0.00124 moles volume of acetic acid sample solution = 2.00 ml To find…

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: A sample of a pure compund contains 3.04g of nitrogen and 6.94 g of oxygen. The molar mass of this…

A: Since the compound is having only N and O  Hence assuming the compound to be having empirical…

Q: A compound is found to contain 43.64 % phosphorus and 56.36 % oxygen by weight. What is the…

A:

Q: A compound contains arsenic and oxygen as its only elements. A 1.626g sample of the compound…

A: A 1.626 g of the sample contain 1.060 g of arsenicSo, Oxygen = (1.626 -1.060)g…

Q: How many moles would contain 12.0 g of P?

A: Introduction: As per the International system of units (SI), the moles is the unit of measurement…

Q: empirical formula for a compound that contains 20.24% aluminum and 79.76% chlorine.

A:

Q: A compound contains 28.2% nitrogen, 20.8% phosphorous, 8.10% hydrogen, and 42.9% oxygen. Determine…

A: The elements present in the compounds are nitrogen, phosphorous, hydrogen and oxygen. Let the…

Q: Hydrated vanadium (II) sulfate, VSO4·xH2O, is 46.19% water by mass. Determine the empirical formula…

A: Given data contains, Atomic mass of Vanadium is 50.94 amu. Atomic mass of sulfur is 32 amu. Atomic…

Q: 6.50 g of a vanadium oxide contains 4.42 g of vanadium. What is the empirical formula of the oxide?

A:

Q: empirical formula?

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Q: 7. The mass percent of water in a hydrate of MnCl, is 36.41%. What is the empirical formula of the…

A: We have to calculate the formula for hydrate..

Q: Determine the empirical formulas for compounds with the following percent compositions: 43.6%…

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Q: Write the chemical formula, and then calculate the amount (in moles) for 74.52 g of aluminum…

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Q: 2. In a sample of 7.42 x 104 formula units of sodium carbonate, Na2CO3, determine: A) how many atoms…

A: Given: Number of formula units of Na2CO3 = 7.42×1025 units and we know that the molar mass of Na2CO3…

Q: A compound containing only sulfur and phosphorus is 50.9% S by mass; the molar mass is 252 g/mol.…

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: If cobalt metal is mixed with excess sulfur and heated strongly, a sulfide is produced that contains…

A: The empirical formula of the sulfide has to be given.

Q: 10. Acetic acid is 39.9% carbon, 6.7% hydrogen, and 53.4% oxygen. Determine the empirical formula…

A: Since you are posted with multiple questions. As per the rule, I am answering the first question…

Q: A compound contains 72% magnesium and 28% nitrogen. What is its empirical formula?

A: 1)  Compound contains 78 % Mg and 28 % N2 Atomic masses of Mg and Nitrogen = 24 and 14        Hence,…

Q: 2. À 63Umg sample of compound that contains carbon(C), hydrogen(H), and oxygen(O) atoms only was…

A: Given :  Mass of sample = 650 mg  Mass of carbon in sample= 257 mg  Mass of Hydrogen in sample= 50.5…

Q: 25 a compound has empirical formula of CH4O2 and a molar mass of 144 g/mol. What is its ?molecular…

A:

Q: 63.45 g of Zn contains ______ moles.

A: The number of moles of any substance present in the sample, we simply divide the given weight of the…

Q: A sample of a compund made entirely from copper and oxygen was founf to have a total mass of…

A: Given,Total mass of sample = 0.1431gMass of copper = 0.1271gThe mass of oxygen is determined as,

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.