Naturally occurring chlorine consists of 35Cl (mass 34.96885 amu) and 37Cl (mass 36.96590 amu), with an average mass of 35.453 amu. What is the percent composition of Cl in terms of these two isotopes?

Q: The density of carbon tetrachloride is 1.59 g/mL. How many chlorine atoms are present in 55 mL of…

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Q: Which of the following is equal to exactly Avogadro's number of atoms? 8.00 grams of oxygen 36.00…

A: To find which of the following is equal to exactly Avogadro’s number of atoms. 8.00 grams of oxygen…

Q: What is the mass, in grams, of 9.84x1024 molecules of methanol (CH3OH)?

A: Given:Number of atoms = 9.84x1024 atoms.Molar mass of CH3OH = 32 g/mol.

Q: What is the mass grams that are in 6.70 x 1025 molecules of 1,?

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Q: i. How many atoms of oxygen are in 8.1 g CO,? j. How many atoms of hydrogen are in 5.0 g NH3?

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Q: Calculate the mass in grams of 1.23×10241.23×1024 molecules of methanol. The chemical formula for…

A: Given that, the molecules of methanol= 1.23 × 1024 Now, as per Avogadro’s law: 1 mol of methanol…

Q: What is the mass, in grams, of 9.55×1024 molecules9.55×1024 molecules of methanol (CH3OH)?

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Q: What is the mass of 1.67 x 10^15 atoms on MN, 6.45 x 10^23 atoms of N, and 3.40 x 10^25 atoms of C…

A: Given :-  number of Mn atoms = 1.67 × 1015 atoms  number of N atoms = 6.45 × 1023 atoms  Number of C…

Q: If a sample of Fe2S3 contains 1.25x10^15 iron atoms what is the mass in grams ?

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Q: What is the mass, in grams, of 9.71×1024 molecules of methanol (CH3OH)?

A: Introduction :  We need to calculate mass in grams for CH3OH . First convert molecules into moles .

Q: Vitamin C (ascorbic acid) contains 40.92 % C, 4.58 % H, and 54.50 % O, by mass. The experimentally…

A: Given :-  Percent by mass of C = 40.92%  Percent by mass of H = 4.58 %  Percent by mass of O = 54.50…

Q: Find the mass (in grams) 7.7 X 10 molecules of NO,

A: Given :-  Number of molecules of NO2 = 7.7 x 1023 molecules  To calculate :- mass of NO2 in grams

Q: How many moles of chlorine atoms are there in a sample that consists of 1.89e+22 molecules of iodine…

A: There are 6.022×1023 molecules in one mole of iodine trichloride ICl3.

Q: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Given the molar mass of the compound is 893.49…

A: The chemical formula for chlorophyll is C₅₅H₇₂MgN₄O₅. Molar mass of chlorophyll is 893.49 g/mol1 mol…

Q: How many molecules are there in 122 grams of NO2?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: How many molecules of ammonia would there be in 22.7 grams of ammonia, NH3?

A: Given: Mass of ammonia = 22.7 g

Q: What is the mass, in grams, of 9.53 x 10" molecules of methanol (CH, OH) ? mass:

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Q: How many moles are there in a copper wire that has a mass 10.234 g?

A: Since you have posted multiple questions, we are entitled to answer the first only. And since you…

Q: How many molecules of carbon tetrafluoride, CF4, are in 176 grams of CF4?

A: We know 1 mol of any compound contains Avogadro's number of molecules. That is 6.022× 1023…

Q: How many atoms would there be in 6.18x106 g of chlorine, Cl2?

A: Given, Mass of chlorine gas (Cl2) = 6.18 × 106 g Number of atoms are there in 6.18 × 106 g of…

Q: What is the mass, in grams, of 9.32×1024 molecules9.32×1024 molecules of methanol (CH3OH)?

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Q: What is the mass, in grams, of 9.81 x 1024 molecules of methanol (CH,OH) ? mass:

A: The answer to the given question is as follows--------- First we convert the number of molecules to…

Q: what is the percentage composition of oxygen of potassium sulfate,K2S04?

A: Since, Molar mass of K2SO4= 174.259 g mol-1 Molar mass of O = 16 g mol-1 %O = ?

Q: 1. The following quantities are placed in a container: 1.5 x 1024 atoms of hydrogen, 1.0 mol of…

A: Given: Number of atoms of H = 1.5 × 1024 atoms. Moles of sulfur, S = 1.0 mol. And mass of diatomic…

Q: How many grams are in 3.50 moles of Li? How many moles are in 4.65 x 1024 molecules of NO,? What is…

A: Mole is used to determine the amount of substance. One mole of a substance contains 6.022×1023…

Q: How many molecules are there in 1,975.0 g of table sugar, sucrose, C12H22011?

A: Given,  1975 g of table sugar, C12H22O11

Q: What is the mass, in grams, of 9.35×1024 molecules9.35×1024 molecules of methanol (CH3OH)?

A: Given information: molecules of methanol (CH3OH) = 9.35×1024

Q: the mass, in grams,

A: Given information: molecules of methanol (CH3OH) = 9.01×1024 Mole is the amount of the substance…

Q: The black powder used to propel each firework into the sky made up of 75% by mass potassium nitrate,…

A: Given, 75% by mass potassium nitrate15% by mass charcoal10% by mass sulphur65.0 grams of charcoal

Q: How many formula units of magnesium chloride are there in 5.2 grams?

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Q: Calculate the mass, in grams, of 402 atoms of lithium, Li

A: Number of moles = number of atoms/6.022 x 1023 atoms  Mass = moles x molar mass

Q: Prevacid is used to treat gastroesophageal reflux disease (GERD). The chemical formula of Prevacid…

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Q: 7. How many grams are in 2.38 x 1022 molecules of ammonia (NH,)?

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Q: The black powder used to propel each firework into the sky made up of 75% by mass potassium nitrate,…

A: Black powder contains 75% by mass potassium nitrate, 15% by mass charcoal, and 10% by mass sulfur.

Q: How many Carbon Dioxide molecules are there in 3250 grams of Carbon Dioxide?

A: Given that -  Mass of Carbon dioxide, CO2 = 3250 grams    Then, from following relationship -  1…

Q: What is the mass, in grams, of 9.43×1024 molecules of methanol (CH3OH)?

A: Calculate for number of moles of CH3OH: 1 mole of any substance contains 6.022×1023 units (namely…

Q: The following quantities are placed in a container: 1.5 × 1024 atoms of hydrogen, 1.0 mol of sulfur,…

A: Since we only answer up to the first 3 subparts, we will answer the first three only. Please…

Q: What is the mass, in grams, of 9.49×1024 molecules of methanol (CH3OH)?

A: Please find the attached images for the answer

Q: A compound M2O3 is 30.06% oxygen, where M is an unknown metal. The molar mass of M2O3 is?

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Q: What is the mass of 5.60 moles of magnesium chloride, MgCl₂? Express your answer with the…

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Q: A newly synthesized compound has the molecular formula ClF2O2PtF6. Compute, to four significant…

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Q: What is the mass of a single molecule of sugar (C6H1206) in grams?

A: Given - 1 molecule of sugar C6H12O6 Avogadro's number  = 6.022 x 1023 molar mass of C6H12O6 =…

Q: How do you calculate the mass, in grams, of 312 atoms of iron, Fe (1 mol of Fe has a mass of…

A: Use formulas Mole=mass÷molar mass Total molecule=mole×6×1022 Total Atoms=atomicity×molecule…

Q: If a sample of iron(III) sulfide contains 5.00x10^15 iron atoms, what is the mass of the sample in…

A: Given,  No. of Fe atoms = 5.00×1015 atoms of Fe molar mass of Fe2S3 = 207.9 g mol-1 mass of Fe2S3 =…

Q: How many molecules are there in 87.4 g + grams of ammonia, NH3?

A: 1 mole = 6.022×1023 [Avogadros number ]  The mass of one mole of molecules of a substance is called…

Q: Formaldehyde has the formula CH2O. How many molecules are there in 0.55 g of formaldehyde?

A: The molecular formula of Formaldehyde is CH2O Hence molar mass of CH2O = Atomic mass of C X 1 +…

Q: sing the formula for butane, C4H10, the ACTUAL molar mass of butane.

A: We have to calculate molar mass of butane using its formula C4H10

Q: Aspirin is a compound with the molecular formula C9H8O4. What is its percent composition?

A: The percentage composition of C in aspirin can be calculated as: Percent composition of C = Number…

Q: The empirical formula of quinine is C10H12NO. If its molar mass is 324.42 g/mol, what is its…

A: Empirical formula= C10H12NOEmpirical mass=(12.01×10+1.008×12+14.00+16.00)g…

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.