One mole of particles of any substance contains is:   a. 3 x 10-10particles     b. 106particles     c. 6.02 x 10-23 particles     d. 3 x 10-10 particles     e. 6.02 x 1023particles

Q: Which of the following has the most moles of substance? a. 10.0 g He b. 5.0 x 10²³ atoms Ne c.…

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Q: 13. How many oxygen atoms are in 225 g of O2? a. 4.23 x 1024 b. 6.84 x 1024 c. 8.47 x 1024 d. 1.69 x…

A: Number of Atoms of Oxygen can be calculated as -

Q: 6. What is the percent by mass of nitrogen in ammonium carbonate? a. 14.53% b. 27.83% c. 29.16% d.…

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Q: 7.0 g of nitrogen atoms contains     a.1 molar mass of nitrogen atoms b.2 molar mass of nitrogen…

A: As we know that, 1 mol of nitrogen atom contains 14 g of nitrogen. (Molar mass of N = 14 g/mol )…

Q: In chemical reactions: Select one: a. molecules and atoms can be created or destroyed b. molecules…

A: To explain in chemical reactions :  a) molecules and atoms can be created or destroyed  b) molecules…

Q: The composition of a commercial cold remedy mixture is 87% aspirin, 7% caffeine, 6% vitamin C. What…

A: Mass of mixture that contains 5 g Caffeine = ? % of aspirin = 87 % % of caffeine = 7% % of vitamin C…

Q: inside the front cover of this book to calculate the mass in grams of each of the following samples.…

A: Note : As per our guidelines we are supposed to answer only first 3 subparts of first question.

Q: 0.4 moles of calcium carbonate contains how many carbon atoms?     A. 1.2 x 1023   B. 4.8 x…

A: The formula of calcium carbonate = CaCO3  Molecular weight of CaCO3 is 100 gm/mol  1 mole CaCO3 =…

Q: The number of moles in various samples is shown in the table below. Determine which sample contained…

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Q: 0.6 moles of strontium phosphate contains how many oxygen atoms?     A. 0.8 NA   B. 2 NA   C.…

A: Answer: Molecular formula of Strontium Phosphate: Sr3(PO4)2

Q: Data Table 1. Moles and Atoms in Common Items Item Aluminum Cup Glass Stirring Rod Cotton Ball A.…

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Q: 41.  0.8 moles of ferrous phosphate contains how many oxygen atoms?   A. 3.2 x 1024      B.…

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Q: One mole of H₂O contains O a.3.0 1023 hydrogen atoms O b. 1.2 1024 hydrogen atoms c. 6.02 1023…

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

Q: How many moles are in 7.82 g of aspartame? C14H18N2O5   A. 0.2569002 grams C14H18N2O5   B.…

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Q: Morphine (molar mass = 285.37 g/mol) is a narcotic %3D painkiller. How many moles of morphine are…

A: We know that : moles = weight of substance/molecular weight of substance  Or, moles (n) = weight…

Q: What is the molar mass of Ba (SO4)? A. 233.3 grams/mole B.329.3 grams/mole C.185.3 grams/mole…

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

Q: 14. How many moles of CC are in each of the following quantities? A. 79 gg of CC Express your…

A: Answer:- This question is answer by using the simple concept of calculation of moles using the given…

Q: How many moles equate to 128 g of CO2? A. 2.91mol B. 15.6mol C. 5.82mol D. 24.6mol

A: Given : Mass of CO2 = 128 g

Q: What coefficients (in order from left to right) are needed to balance the following chemical…

A: What coefficients (in order from left to right) are needed to balance the following chemical…

Q: For item 1-2 please refer to the problem on the picture. Please answer and choose the correct answer…

A: The balanced chemical equation is                   16 Al + 3 S8→8 Al2S3        16 moles of Al…

Q: What is the mass in grams per mole?

A: Information about the question

Q: QUESTION 30 The standard for atomic masses is based on O A. a kilogram of oxygen O B. hydrogen, the…

A: as per Q&A guidelines of portal I solve first question because it comes under multiple question…

Q: moles

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Q: What statements are always true about limiting reactants? Select one or more: a. There will be an…

A: Limiting reactants : It is the reactant in the chemical reaction which is completely consumed for…

Q: Determine the amount of mass produced AuCl3 when 10grams of Cl2 is reacted with Au.

A: 2 Au(s) + 3 Cl2(g) → 2 AuCl3 (g) From this Balanced chemical equation we get that ; 3 mole of Cl2…

Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

A: Given Mass of indium carbonate = 19.2 mg

Q: What is the molar mass for the Dinitrogen Trioxide?   A. 30.0 grams/mole   B. 150.0 grams/mole…

A: Since we know that the molar masses of nitrogen and oxygen are 14.0067 g/mol and 15.999 g/mol…

Q: 8.The number of moles of each compound in a chemical reaction is represented by a ______…

A: Basically the question is asked how to determine the moles in a chemical reaction by seeing it.

Q: How many particles are in 1.80 mol of sulfur trioxide gas? O a. 144 O b. 115.2 O c. 1440

A: Given information,  1.80 mol sulfur trioxide

Q: 1. Determine the percent composition of the following: a. A scientist analyzes a 50.0g sample and…

A: Here we are required to find the percentage composition.

Q: What is the empirical formula for the compound formed in previous problem?   Cr I Mass of element…

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Q: How many moles of sulfate ions (SO,2) are present in 0.30 mol of aluminum sulfate? A. 0.10 mol B.…

A: Al2(SO4)3 is a salt and readily dissociates in water forming following ions as shown below in the…

Q: How many moles of glucose is burned with 10 moles of oxygen? C6H1206(s) + 602(g) ® 6CO2(g) + 6H2O(1)…

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Q: I. COMPLETE THE TABLE Use the given values in the table to solve the missing values. Mass Number of…

A: As per our guidelines, I can only answer first three sub-parts because you have posted multiple…

Q: How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?   A. 0.140 moles…

A: Only 1st question is answered according to the policy

Q: If a bucket holds 2.00 lb of NaOH, how many gram moles of NaOH does it contain?  A. 10 B. 15.6 C.…

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Q: Quantity 1. Mass of crucible + cover 2. Mass of crucible + cover. Magnesium 3. Mass of Magnesium 4.…

A: Empirical formula: The formula in which the simplest whole number ratio of constituent atoms ( that…

Q: How many entities are present in each of the following? a. 8.44 mol argon atoms b. 1.1 x 10-¹2 mol…

A: For any substance, . In all the questions moles are given. Thus, the number of atoms can be…

Q: 3 The density of liquid benzene, C,H, is 0.879 g/cm at 15 °C. How many moles are there in 36.5 mL of…

A: Given that:  Density of benzene = 0.879g/cm3 Volume of benzene = 36.5mL  Using the formula of…

Q: Calculate the percent by mass of each element in the following compounds. a. Methane, CH4 b.…

A: Percent by mass is simply the ratio of atomic mass of element present in compound to total molar…

Q: How many moles of aluminum are in an aluminum block that meausres 3.00cm x 3.00 cm x 5.00cm? The…

A: Density: It is a ratio of mass of an object to its volume. Its SI unit is g / cm3. It creases with…

Q: How many bananas are in 0.10 moles of bananas? 3.0 x 1023 3.0x 10 21 6.0 x 1022 6.0x 1024

A: Given,  Moles of bananas = 0.10 moles To find, molecules of bananas??

Q: Which of the following compounds contains the largest number of atoms?

A: 1 mol = 6.022 × 1023  atoms   We can calculate moles of each atom in a mole of compound. For example…

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.