An organic compound has an empirical formula CH2 and a molar mass of 112.21 g/mol. How many H atoms are present in a 8.22-g sample of the compound?

Q: What is the total number of oxygen atoms on the right-hand side of this chemical equation?…

A: Interpretation: The total number of oxygen atoms on the right-hand of the given chemical equation…

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

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Q: Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution…

A: Given reaction is

Q: A compound is composed of 73.1 % G e and 26.9 % O. What is the empirical formula?

A: Given : Mass percent of Ge = 73.1 %  And mass percent of O = 26.9 % Since the compound contains only…

Q: How many H atoms are present in 7.52 g of propane, C3H8?

A: The given data contains, mass of propane = 7.52 g.

Q: How many molecules are contained in two 500.-mg tablets of penicillin (C 16H 18N 2O 4S, molar mass…

A: Given data, The mass of penicillin = 500 mg The molar mass of penicillin = 334.4 g/mol. To calculate…

Q: What is the empirical formula of a compound composed of 21.7 g21.7 g of potassium (KK) and 4.44…

A: Given:Mass of potassium = 21.7 gMass of oxygen = 4.44 g.

Q: Over the years, the thermite has been used for welding railroad rails, in incendiary bombs, and to…

A: Given: Mass of iron = 15.0g To find: The masses of iron(III) oxide, aluminium and maximum mass of…

Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

A:

Q: The empirical formula of propylene is CH2. An experimental determination of the molar mass of…

A: Let the number of carbon atoms be n and the number of hydrogen atoms be 2n in the molecular formula…

Q: A compound contains 24.3% C, 4.1% H, and 71.6% Cl by mass, and has a molar mass of 99 g/mol. What is…

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Q: A: What is the correct chemical formula when Co4+ combines with S2- ?  B:  How many ATOMS of OXYGEN…

A: A: What is the correct chemical formula when Co4+ combines with S2-?

Q: If a sample of Ca(OH)2 is found to contain 5.34 mol of OH" ions how many moles of Ca?+ ions are…

A: Given: moles of OH- ions = 5.34 mol

Q: 2 Fe203 + 3 C → 4 Fe + 3 CO2 how many moles of Carbon (C) are needed to produce 1.9 moles of Iron…

A: The given equation is as follows 2Fe2O3 +  3C ----------->>> 4Fe + 3CO2  According to…

Q: A compound is composed of 54.50% O, 4.58% H and 40.92% C by mass. If the compound has a formula…

A: Empirical formula- It represents simplest whole number ratio of various atoms present in the…

Q: How many moles of Al are necessary to form 83.0 g of AIBR, from this reaction: 2 Al(s) + 3 Br,(1) →…

A: For the reaction: 2Al     +   3Br2 →  2AlBr3 2 mol        3 mol         2 mol Given : Mass of AlBr3…

Q: Question is attached

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

Q: 1. An organic compound was found to contain 54.5% C, 9.2% H, and 36.3% O. a. What is the empirical…

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Q: How many molecules are contained in a 325-mg tablet of aspirin (C 9H 8O 4, molar mass 180.2 g/mol)?

A: Aspirin is an antipyretic and anti-inflammatory drug and is widely used as an antiplatelet agent. It…

Q: _____1. What is the % C in aspirin by mass in aspirin? _____2. What is the % O in aspirin by mass…

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Q: the fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Number of moles of butane is calculated by dividing the amount in grams by molar mass.

Q: A 5.17 g sample of a compound with the formula CxHyOz is combusted and yields 13.0 g CO2 and 2.29 g…

A:

Q: Consider a sample of calcium carbonate, CaCO3 (100.09 g/mol), in the form of a cube measuring 2.88.…

A: The length of the cube of calcium carbonate, CaCO3 =2.88 cm The density of the calcium carbonate,…

Q: Calculate the molar mass (g/mol) of the compound. NaNO2

A: Calculate molar mass of NaNO2 ?

Q: The molecular formula for paracetamol is C3H,NO2. How many moles of C atoms are present in a 10.0 g…

A: Molecular formula of paracetamol is C8H9NO2 Molecular weight of paracetamol is  =  8 carbon atom = 8…

Q: How many total atoms are in a 75 g sample of Ag2O?

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Q: Ferrocene has the formula Fe(C5H5)2 (a)Chemical amount of ferrocene in 100g of ferrocene (b)Number…

A: This can be solved by using the Molarity and Avogadro's number concept.

Q: A sample of rubbing alcohol solution contains ethanol, C2H5OH(l). If the sample contains 1.25 × 1023…

A: Given;

Q: What is the mass(in g) of 0.935 mol of acetone, CH3COCH3? A. 57.1 B. 0.0161 g C. 54.3 g D. 62.1…

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Q: Consider the following balanced reaction: N2(g) + 3 H2(g) 2 NH3(g) What mass of NH3 can be formed…

A: Given: Moles of H2 = 9.02 x 10-4  molesWe know that,molar mass of NH3 = 17 gThe balanced eqn…

Q: What is the mass (in g) of 9.87 x 1022 atoms of magnesium? The molar mass of Mg is 24.305 g/mol.…

A: Given, 9.87*1022 Mg atoms

Q: A 4.73 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A:

Q: How many atoms of carbon are present in 34. 5 g caffeine, Cg H10N4O2 ? A 1.08 x 1024 B 8.57 x 1023…

A: given, the weight of caffeine = 34.5g

Q: a. Calculate the molar mass of Al2 O3. Molar mass = g/mol %3D b. Calculate the molar mass of Na3…

A: Answer: Molar mass of a compound is the sum of the gram atomic masses of all the atoms present in…

Q: Liquid nitromethane was once widely used as an explosive but is now much more common as a fuel for…

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Q: What is the molecular formula of a compound with an empirical formula of CH20 and a molar mass of…

A: Empirical Formula:- It is the simplest positive integer ratio of atoms present in a compound.…

Q: What is the molecular formula of a compound with the empirical formula H2PO3 and a molar mass of…

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Q: The acid–base reaction between phosphoric acid, H3PO4, and calcium hydroxide, Ca(OH)2, yields water…

A: In the balance reaction, phosphoric acid, H3PO4, a weak acid, reacts calcium hydroxide, Ca(OH)2 to…

Q: 5. The empirical formula of a compound is CaH10. hat could its molecular formula be 86 6. A compound…

A: SOLUTION [5.] : Empirical formula of a compound = C4H10O So, molecular formula of a compound will be…

Q: A 3.06 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: If 6.63 × 10−6 mol of a compound has a mass of 2.151 mg, what is the molar mass of the compound?

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: empirical formula of a compound that contains 27.0% S, 13.4% O, and 59.6% Cl by mass?

A: If percentage are given then we are taking total mass is 100 grams. So, the mass of each element is…

Q: What is the chemical formula of a compound with an empirical formula of CH2O and a molar mass of…

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Q: Elemental analysis of a sample containing only B and H shows that it contains 479.4 g of boron…

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Q: (a) What is the difference between adding subscript 2 to the end of the formula for CO to give CO2…

A: A question based on general chemistry, which is to be accomplished.

Q: Ethanol (C 2H 6O, molar mass 46.07 g/mol) is synthesized by reacting ethylene (C 2H 4, molar mass…

A: Given that:  molar mass of Ethanol = 46.07 g/mol molar mass of ethylene = 28.05 g/mol mass of…

Q: What number of molecules (or formula units) are present in 3.07 g of each of the following…

A: Given,  Mass of each compound = 3.07 g  Then,  Find number of molecules in = ?  a). NH3  b). N2H4…

Q: When 1.915 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 6.474 grams…

A: The general equation for the combustion reaction of hydrocarbon, CxHy, in the presence of oxygen is:…

Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…

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.