Multiple Choice: How many atoms of carbon-14 are in the average human body given the following four facts: 1. Carbon makes up 23% of the human body by weight. 2. The average human body has a mass of 150 kg. 3. There are approximately 83 moles in every kg of carbon. 4. One in every trillion atoms of carbon is carbon-14. a. 1,89 X 10 (exponent 15) b. 1,72 X 10 (exponent 15) c. 1,89 X 10 (exponent 16) d. 1,72 X 10 (exponent 16)

Q: When this equation is balanced with the smallest set of whole numbers, what is the coefficient for…

A: A chemical equation is said to be balanced, if the number of atoms of each element or compound is…

Q: Data Table 20.442 A) Mass of crucible (g) 20.717 B) Mass of magnesium and crucible (g) C) Mass of…

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

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

Q: Compare 1 mole of H2, 1 mole of O2, and 1 mole of F2.(a) Which has the largest number of molecules?…

A: (a) Mole is SI unit which is used to measure the quantity of the substance. It is the quantity of a…

Q: Two grams of magnesium is heated as in this experiment, producing 3.33 g of magnesium oxide.…

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Q: What is the coefficient in front of the O2 when the equation below is balanced (using only whole…

A: Balanced equation :-  A chemical equation is said to be balanced if the number of atoms of different…

Q: Part B: NazCO; Reaction: 1. Determine the experimental mole-to-mole ratio of NazCO3 to NaCl from…

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

Q: How many moles of Cu (Copper) are in 1.48 x 1025 Cu atoms? Show the work.

A: Given, 1.48 x 1025 Cu atoms

Q: One mole of particles of any substance contains is:   a. 3 x 10-10particles     b. 106particles…

A: Note : 1 mole of substance contains 6.023 x 1023 molecules.

Q: Which quantity has the greater mass? Group of answer choices 6.02x1023 H atoms 1 mol of He atoms

A: No. of moles = no. of atoms given ÷ Avogadro's number (Na)  No. of moles of H atoms = 6.02×10^23 ÷…

Q: When rubidium metal is exposed to air, two atoms of rubidium, Rb, combine with one atom of oxygen.…

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Q: Calculate the moles of CuCu in 8.2×1021 atoms of CuCu.   Express your answer using two significant…

A: Number of Copper atoms present = 8.2x1021 We know that, 1 mole of atoms contain= 6.023x 1023 atoms.…

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: Using dimensional analysis, convert 78 grams of Carbon into moles. (1 mol = molar mass of…

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Q: For 4130 steel, how many atoms per carbon atom are there? Please show work.

A: For 4130 steel, the amount of iron atoms present are alomst 98%. There is maximum percentage of iron…

Q: 3940.0 g of Fe is produced, how many grams of CO2 will also be produced

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Q: How many moles of NH3 are contained in a 18.62L sample at 90.0°C and 5.74atm?

A: Given, Pressure (P) = 5.74 atm Volume (V) = 18.62 L Temperature (T) = 90.0°C = (90.0 + 273.15) K =…

Q: A student weighs a 0.0103 g0.0103 g sample of magnesium metal. How many moles of magnesium does the…

A: The answer to the following question is given as:

Q: a mass of 6 grams of gaseous hydrocarbon is completely burned with oxygen and 17.6 grams of CO2 are…

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Q: A compound contains 0.01293 moles of V and 0.03325 moles of Cl.  Calculate the ratio of moles of Cl…

A: Record the given data, The number of moles of compound V = 0.01293 moles The number of moles of…

Q: Part C A sample of propane, C3 H8, contains 15.8 moles of carbon atoms. How many total moles of…

A: Given, sample of propane contains 15.8 moles of carbon.The moles of hydrogen present in the sample…

Q: Calculate the mass percentage of oxygen in the organic molecule whose line structure is shown below.…

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Q: Profiles Tab Window Help Chrome Edit View History Bookmarks File Lobby | Top Hat N Watch Gilmore…

A: Mass of Mg2SiO4= 80.0 g , Molar mass= 140.69 g mol-1 Then, Number of Mg atoms = ?

Q: The formula for lactose is C12H22O11, and the monohydrate is C12H22O11*H2O. What is the percent by…

A: The formula of lactose is = C12H22O11 The formula of lactose monohydrate is = C12H22O11*H2O The…

Q: how all work in your notebook, including dimensional c Combination/s 30z → 2 Fe2O3 a) How many moles…

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Q: Using dimensional analysis, convert 5.7 moles of Fluorine into atoms. (1 mol = 6.02 x 1023). Round…

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Q: What is the amount of Ne in moles in a 355 gram sample of Ne? (Molar mass of neon = 20.18 g/mol)…

A: Given   mass of Ne            = 355 gram  Molar mass of Ne  = 20.18 gram/mole  Number of mole of Ne…

Q: 1. Determine the mass in grams of each of the following: a. 6.35 mol Al b. 52.4 mol P 2. Convert…

A: A mole is collection of particle

Q: How much does 19.11 moles of X weigh in grams? (Assume that the molar mass of X is 28.84 grams per…

A: Data given, Number of moles of X = 19.11 moles  Molar mass of X = 28.84 grams/mole

Q: For the following: 1. Draw a circle around each subscript. 2. Draw a square around each coefficient.…

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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 nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A: We have to calculate the moles of carbon present.

Q: Q7) a compound is found to contain 40 % carbon, 6.7 % hydrogen, and 53 % oxygen by weight. What is…

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

A: Density: Density of a substance is its amount of mass per unit volume.So, density is the property…

Q: question 9

A: Molar mass of acetic acid is =60g/mol.1 mole of the organic Carboxylic acid (Acetic acid) is mass…

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

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Q: How many moles of C2H4 contains 2.75x1023 atoms of H?

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Q: 9. If you began with 2.5 moles of CP and 4.2 moles of DMAD, show using dimensional analysis how many…

A: Moles of CP      = 2.5 mol Mols of DMAD = 4.2 mol

Q: The compound NHxNO3 contains 5.04% hydrogen by mass. What is the value of x? Enter your response as…

A: Given  % Hydrogen =  5.04 %  formula of compound  = NHxNO3 Value of x = ?

Q: How many mole of C13H18O2 contain 7.4x10'25 atoms of C

A: The given compound is C13H18O2. The question is 7.4 * 10^25 atoms of Carbon are present in how many…

Q: You have 73.56 g of silver nitrate.  How many moles of oxygen atoms are present

A: One molecule of nitrate ( AgNO3 ) contains three atoms of oxygen.  Molar mass of AgNO3 = 169.87…

Q: You have 73.56 g of siver nitrate. How many moles of oxygen atoms are present?

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

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Q: 4 Al + 3 02 --> 2 Al2O3 Given 4.4 moles of Aluminum (Al), how many grams of aluminum oxide (Al203)…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

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: 6. So, what is the difference between a subscript and a coefficient? 7. Which of the following…

A: Let's see answer of given two questions,

Q: 2.20 Fluorite, a mineral of calcium, is a compound of the metal with fluorine. Analysis shows that a…

A: Mass percent is a method of expressing concentration of the solution.   amount of substance present…

Q: How many grams of oxygen are formed when 1.06 moles of KOH are formed? 4 KO(s) + 2H20(1) + 4 KOH (s)…

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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.