Answer the following questions on moles and the mole. (SHOW WORK and round ALL final answers to 2 decimal places)  How many moles are in 9.8 grams of calcium? How many grams are in 238 moles of arsenic? How many molecules are there in 24 grams of FeF3? How many molecules are there in 450 grams of Na2SO4? How many grams are there in 2.3 x 1024 atoms of silver

Q: How many grams of ibuprofen are in 0.540 moles?

A: number of moles = mass/molar mass  mass = moles × molar mass

Q: Be sure to answer all parts. How many H atoms are in 31.3 g of isopropanol (rubbing alcohol), C3H3O?…

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Q: How many moles of KBr are in 61.3 grams of KBr?

A: We are given with 61.3 grams of KBr and we have to calculate the moles of KBr present.

Q: Caproic acid, which is responsible for the foul odor of dirty socks, is composed of C, H, and O…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: How many moles of NO2 are in 8.2x1025 molecules of NO2? Round your answer to 1 decimal place. Your…

A: According to the mole concept, there are 6.022 × 1023 molecules present in 1 mole of every…

Q: How many grams of Mg3(PO4)2 are there in 2.9 moles of Mg3(PO4)2 ? Round your answer to 2 decimals.…

A: Given compound is: Mg3(PO4)2 What is the mass of 2.9mol. of Mg3(PO4)2?

Q: Show all steps in the answers for the following questions and use significant figures in the…

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Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Given: The formula for acetic acid = CH3CO2H.

Q: This is the chemical formula for carvone (the chemical that gives spearmint its flavor): C10H14O An…

A: Carvone has folloing molecular formula C10H14O So, 10 moles Carbon contains per mol of oxygen.

Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: Q2 Calculate the moles of magnesium in 1.25 grms of magnesium. Q2a.Use the mole of magnesium in…

A: Moles from the given mass can be determined by using the formula as; Moles=Given massMolecular mass…

Q: Determine the quantity (g) of pure MgSO4 in 2.4 g of MgSO4•7H2O. Show your work.

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Q: What is the mass in grams of 4.57 × 10²⁵ molecules of Cl₂? I get the write and but the wrong number…

A: Mole concept: The number of molecules in one mole of chlorine is equal to the Avogadro number. The…

Q: This is the chemical formula for cassiterite (tin ore): SnO2 A geochemist has determined by…

A: Given : The formula of cassiterite is SnO2. And the moles of tin i.e Sn in the cassiterite sample =…

Q: Be sure to answer all parts. How many H atoms are in 77.3 g of isopropanol (rubbing alcohol), C3H3O?…

A: We have to calculate  the number  of H atoms present  in 77.3 g of isopropanol alchol ( C3H8O)

Q: Show all steps in the answers for the following questions and use significant figures in the…

A: * Moles = Mass / molar mass  * 1 mol = 6.022 × 10²³ atoms or molecules * Molar mass of Carbon = 12…

Q: How many molecules are in 52.35 grams of aspartame? C14H 18 ,05 2.89 X 1022 Atoms C subscript 14 H…

A: Option( B) is correct.

Q: Calculate the number of moles in each of the following Part B 0.231 g of C Express your answer with…

A: Given that, Part-B: 0.231 g Carbon (C) We have to calculate the number of moles of carbon (C).…

Q: How many moles of CO2 are in 2.33grams of CO2? Please express your answer in decimal form

A: Given, mass of CO2 = 2.33 g

Q: How many moles of tin atoms are in a pure tin cup with a mass of 31.7 g ? Express your answer in…

A: Molar mass of tin=118.71g/mol Given mass of tin=31.7g No. Of moles= given mass/molar mass…

Q: Answer the following questions on Avogadro's Number and the mole. (SHOW WORK and round ALL final…

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

Q: What is the mass of taurine if the number of moles is 0.4249 mol? What is the number of moles in…

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Q: The chemical formula for propane is: CH;CH,CH3 Calculate the molar mass of propane. Round your…

A: A chemical compound is formed when two or more elements are combined together and the molar mass of…

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Answer:- This question is answered by using the simple concept of chemical formula analysis of the…

Q: Aluminium has a density of 2.70 g/cm³ . How many moles of aluminum are in a 13.2 cm³ block of the…

A: Density of Aluminium=2.7 g/cm3We are having 13.2 cm3 block⇒2.7 g/cm3=mass13.2…

Q: A sample of oxygen has a mass of 25.2 grams. How many O atoms are there in the sample?  atoms How…

A: Calculation given as follows

Q: 125 grams of sugar (C12H22011) is _ mole? Select an answer and submit. For keyboard navigation, use…

A: The given data is as follows: The mass of the sugar = 125 g The moles of sugar = ? To calculate the…

Q: a) What is the mass, in grams, of 5.000 moles of carbon atoms? b)What is the average mass, in…

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

Q: mass in grams of  1.74 x 10^24 atoms of beryllium

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Q: Convert 2.59 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

A: Balanced chemical equation is a chemical equation which all the atoms of the elements involved in…

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

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Q: How many grams of Mg3(PO4)2 are there in 2.3 moles of Mg3(PO4)2 ? Round your answer to 2 decimals.…

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Q: How many grams are in a mole of O2? Express your answer using one decimal place.

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Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

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Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3(Si,0;),(OH), An…

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Q: The mole is a unit of measurement, which chemists routinely utilize. Which of the following molar…

A: A mole is defined as the amount of substance tht contains the same number of atoms, molecules, ions…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3Si2O52OH2 An…

A: Given data: Number of moles of silicon = 13  Chemical formula of talc = Mg3(Si2O5)2(OH)2

Q: O STOICHIOMETRY Using the Avogadro Number An oxygen atom has a mass of 2.66 x 10 - 23 g and a glass…

A: We are given mass of one atom and we have to calculate mass of one mole and hence calculate how many…

Q: Part A: How many atoms of hydrogen does it contain?         Express your answer using four…

A: Given: Number of carbon atoms in C6H12O6 = 1.300 × 1021 atoms.

Q: Aluminum hydroxide is used as a deodorant and sometimes an antacid (something that prevents acid…

A:

Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

A: The given term in the balanced equation is: 2Ba(OH)2⋅8H2O  The subscripts in a molecule represent…

Q: Convert 5.70 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

A: The balanced chemical equation is: 2 Na3PO4 + 3 CaCl2 ---> Ca3(PO4)2 + 6 NaCl

Q: Aluminum has a density of 2.70 g/cm^3. How many moles of aluminum are in a 13.2 cm^3 block of the…

A: Given,  Density of Aluminium = 2.70 g/cm3  Volume = 13.2 cm3

Q: O STOICHIOMETRY Using the Avogadro Number A copper atom has a mass of 1.06 x 10 22 g and a penny has…

A: This question have two subparts. In first part we will determine the mass of 1mol of copper atom and…

Q: Convert 3.48 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

A:

Q: Which of the following can be used mole as a unit to count paticles/atoms? A. Pharmaceutical…

A: No. Of moles refers to the amount of no. Of atoms or particles with respect to its standard units.…

Q: Show all steps in the answers for the following questions using significant figures in the…

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

Q: A student needs 19.66 moles of sulfur trioxide (SO3). How many grams should they measure out?

A: Given, the number of moles of SO3 =19.66 moleswe are asked to calculate the mass of SO3…

Q: How many molecules are in a snowflake containing 3.00 x 10-5 g of H2O  answer in molecules  (c) a…

A: Snow flakes containing water molecules.

Q: how many molecules are in the sample 2.0 g H2O? Express your answer using two significant figures.

A: Number of moles of water can be calculated as follows: No. of moles = MassMolar massNo. of moles =…

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.