Part A Which of the following is the correct formula weight for calcium phosphate? 310.2 amu 175.1 amu O 135.0 amu O 215.2 amu 182.0 amu

Q: A sample of sulfolane, C.H3O,S, contains 5.00 x 1024 atoms. How many moles of sulfolane are in the…

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Q: What is the molar mass of Cr(OH)3? Remember to round your answer to the tenths (0.1 g) place. 207.0…

A: The molar mass of any substance can be calculated by adding the masses of the individual elements.

Q: What is the formula weight of mercurous nitrate, Hg2(NO3)2? 525.20 amu 262.20 amu 621.20 amu O…

A: Atomic mass of Hg = 200.59 amu Atomic mass of N = 14 amu Atomic mass of O = 16 amu

Q: which contains the larger numbers of molecules 25.0 g HCI or 85.0 g C6H12O6

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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: What is the mass of 2.84 mol H2O? 3.05 g 51.2 g 28.4 g 3.48 g

A: We have to predict the mass of water.

Q: 13. How many moles are represented by 3.01·10“ helium atoms? 5 moles 0.75 moles 0.50 moles 1 mole

A: Given: no of helium atoms = 3.01 x 1023 atoms We know that, Avogadro number, NA = 6.02 x 1023 atoms

Q: What is the molar mass of AuCl3? O 1) 130 g O 2) 303.6 g O 3) 232.5 g O 4) 96 g

A: Atomic mass of Au= 196.97 amu Atomic mass of Cl = 35.45 amu

Q: Calculate the molar mass of calcium nitrate. O 132.10 g/mol O 136.03 g/mol 102.09 g/mol O none of…

A: Molecular  mass of the compound is the sum of the atomic mass of all the atoms present in compound.…

Q: Determine the number of moles of cesium in 50.0 g of cesium.

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Q: What is the mass of one atom of I? O 4.745 x 10-22 g O 3.443 x 10-22 g O 6.641x 10-23 g O 2.107 x…

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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: What is the mass of 10.7 mol of N20? 10.7 g 471 g 4.11 g 52.3 g

A: 1 mol of a molecule= molar mass of molecule

Q: Determine the number of moles of xenon in 12.0 g of xenon. O 7.62 x 10 -3 mol O 0.0457 mol O 1.00…

A: We can determine the number of moles of a substance from the mass and molar mass of the substance.…

Q: A compound has an empirical formula of HgCl. If the molecular mass of the compound is 472.2 g/mol,…

A: Here we are required to find the molecular formula.

Q: How many calcium atoms are in 1 g of CaO? O 9.553 x 10-23 O 7.201 x 1023 O 1.074 x 1022 O 1.422 x…

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Q: What is the formula weight of magnesium hydroxide, an ingredient found in antacid? A. 72.0 u C. 58.3…

A: The mass of one formula unit of a substance is known as formula mass. The formula mass of the sum of…

Q: Determine the empirical formula for a compound that is found to contain 10.15 mg P and 34.85 mg Cl.…

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Q: How many lithium iodide formula units, Lil, have a mass equal to 4.24 g? 1.91 x 1022 formula units…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many moles of Pb are in 4.71 x 1021 Pb atoms? O 2.84 x 1045 6.022 x 1023 207.2 none of the above…

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Q: What is the mass of one mole of Al2(SO4)3? * O 75.04 g 342.14 g O 75.04 mol 342.14 mol

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Q: Select the number of moles of NaCl in 8.68 x 1025 sodium chloride formula units. O 144 mol NaCl O…

A: Given : Number of formula units of NaCl = 8.68 X 1025

Q: How many atoms are in 25.6 g tin? O 1.30 x 1023 atoms O 3.01 x 1024 atoms O 3.01 x 1023 atoms O 6.02…

A: Moles of tin are, Moles = mass ÷ molar mass Moles = 25.6 g ÷ 118.71 g/mol Moles = 0.22 mol

Q: What is the molar mass of potassium nitrate (KNO3)? O 63.0 g/mol O 25.6 g/mol O 101.1 g/mol

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Q: The molar mass of calcium phosphate, Ca3(PO4)2 is: Group of answer choices 278.18 g/mol 215.21 g/mol…

A: Molar mass of a compound is the mass of 1 mole of the compound.It is calculated by the total mass in…

Q: number of atoms in 5.12 g P

A: number of atoms in 5.12 g for  Phosphorus

Q: To increase the body's metabolic rate the human body uses a hormone name epinephrine. The…

A: Empirical formula can be found by finding out the ratio of number of moles of elements. Also, number…

Q: How many moles of fructose are in a sample containing 1.43 x 1024 molecules of fructose? 8.61 × 1047…

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Q: What is the molar mass of Ca(ClO4)2?  171.6 g/mol 203.6 g/mol 239.0 g/mol 279.1 g/mol

A: Molar mass of Ca = 40 g/mol, Cl = 35.45 g/mol, O = 16 g/mol

Q: What is the mass of 4.63 x 1012 atoms of Fe? O 8.96 x 10-10 g O 4.29 x 10-10 g O 2.73x 10-10g O 1.62…

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Q: If the empirical formula molar mass of an unknown chemical is 58.08 g/mol, which of the following…

A: we have to find If the empirical formula molar mass of an unknown chemical is 58.08 g/mol, which of…

Q: A compound is found to have an empirical formula of C2H7O.  Which of the following cannot be the…

A: Empirical formula: It represents the simplest ratio of individual atoms of all elements present in a…

Q: Ibuprofen has the molecular formula C13H1802. The number of moles of carbon atoms in 0.0325 mole of…

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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.