How many atoms of hy drogen are represented in the formulat (NH_(4))3PO_(4)?

Q: What is the molecular formula of each of the followingcompounds?(a) empirical formula HCO2, molar…

A: Concept introduction: Empirical formula: It is the simplest ratio of number of elements presents in…

Q: the mass of 1 gallon of gasoline is about 2.7 kg. Assuming the gasoline is entirely octane, C8H18,…

A: Given The mass of 1 gallon of gasoline is about 2.7 kg or 2700 grams and the gasoline is entirely…

Q: In a lab experiment, 8.21 g of phosphorus reacts with bromine to form 71.75 g of phosphorus…

A: According to the law of conservation of mass, the sum of mass of reactants and the sum of mass of…

Q: - Why do we use the "mole" in chemistry. How does it relate to the periodic table? a) What is the…

A: The relationship between mole and mass is as follows:       Mole = Mass Molar mass ⇒Mass =…

Q: 9. Which of the following has the greatest number of particles? (A) 9.012 g of Be (B) 1 mole of Na…

A: The no of moles is the ratio of given mass to that of molar mass of that substance.  For more than…

Q: Determined the mass percentage of hydrogen in CH4 and C4H10?

A: Molar mass is defined as average mass of atoms present in the chemical formula. It is the sum of the…

Q: How many moles are there in 4.31 × 10¹2 molecules of sucrose C12H22011? (1 mole = 6.022 x 1023…

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Q: Some of the formulas could be either molecular or empirical formulas; however, some can only be…

A: Which are among is the molecular formula ?

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: To find empirical formula: a).  Given: 0.0130 mol= C 0.0390 mol= H 0.0065 mol= O

Q: 19 Convert 7.16E24 atoms of Ni to grams of Fe. 2 Ni+3 Fe(NO3)2 → 2 Ni(NO3)3 +3 Fe type your…

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Q: molecules

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Q: EDTA, which is short for ethylenediaminetetraacetic acid, is a chemical used in the textile industry…

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Q: OH Z ZI 1. PCC 2. H+ NH, B ZI ZI ? O

A: PCC - It is mild oxidising agent which oxidises alcohol (OH) group to aldehyde group as shown:

Q: Complete the table below for calculating the molar mass of the ionic compound silver sulfide.…

A: For determining molar mass of a compound we need to know the formula of the compound.

Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: Cyanocobalamin is vitamin B12 with molar mass of 1355.38 g/mol

Q: What is the total mass of oxygen contained in 5.2 g of benzoic acid (C6H5COOH)?

A: This is mole concept reactions

Q: What amount of CuSO4•5H,O, in moles, does this mass represent? mass = 1.787 g %3D X mol resubmit…

A: Given : Mass of CuSO4.5H2O = 1.787 g And molar mass of CuSO4.5H2O = 249.69 g/mol.

Q: 4A. How many grams of potassium chloride are produced from... ...2.50 g of potassium and excess…

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Q: 7. A compound contains 32.45 % C, 2.72 % H, and 64.83 % O. (a) What is its empirical formula?…

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Q: How many Oxygen atoms are on either side of the equation?

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Q: Answer true or false. (b) Avogadro’s number, to three significant figures, is 6.02 x 1023 formula…

A: Given statements -  (b) Avogadro’s number, to three significant figures, is 6.02 x 1023 formula…

Q: Name the two organic compounds. CH ₂0 H CH₂0-C-C-C-(CH₂-C-C-B₁₂ T11 0=4 HO CH I. 15 0=CH C₂H₁₂. H 0…

A: The IUPAC nomenclature provides a set of rules to name an organic compound unambiguously. Each IUPAC…

Q: This is the chemical formula for methyl acetate: (CH3), CO₂. Calculate the mass percent of carbon in…

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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.