1. How many GRAMS of nitrogen are present in 4.90 moles of dinitrogen tetrafluoride ? 68.6 2. How many MOLES of fluorine are present in 2.79 grams of dinitrogen tetrafluoride ? 1.07e-2 grams. moles.

Q: How many grams are present in 2.4x1045 molecules of H2O2?

A: Given :- number of H2O2 molecules = 2.4 × 1045 molecules  To calculate :- mass of H2O2 (in grams)

Q: a. How many moles of phosphorus trichloride are present in 7.95 × 1022 molecules of this compound?…

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Q: 1. (question not found in the book) Provided you are given a balanced chemical equation: a Where do…

A: Chemical equations represent a chemical reaction. The reactants are written on the left side and…

Q: A.How many grams of chromium(III) oxide, , are present in 2.46 moles of this compound? grams_____…

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

Q: 1. identify 4 different chemical compounds. A.) calculate the mole mass of each chemical compound.…

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Q: Ticly many How many molecules are 1. How moles are present if you have 100 grams? molecules are…

A: Q.1  To determine the number of moles present in 100 g of TiCl4, we need to use the molar mass of…

Q: a. How many molecules of carbon dioxide are present in 3.99 moles of this compound? molecules b. How…

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

Q: Consider the molecule tetrahydrocannabinol (?21?30?2), or THC: How many moles of carbon atoms are…

A: The formula of tetrahydrocannabinol is C21H30O2 . From the concept of molecular weight and mole…

Q: .Calculate the number of moles of hydrogen chloride produced from 10 moles of hydrogen. H2(g) +…

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

Q: D. Solve the following. Show your solutions. Attach a plcture of your solution after each number.…

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Q: 1. How many ATOMS of silicon are present in 2.01 moles of silicon dioxide ? atoms of silicon. 2. How…

A: One mole of a species contains avagadro number of atoms , molecules and ions

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: Step 1: Step 2: Step 3: Step 4:

Q: 4. How many molecules (or formula units) are in 4.59 x 10³ g Na³PO4 sample? a) 1.69 x 1023 Na₂PO4…

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Q: A sample is found to contain 0.650 mole of a chemical substance. a. How many atoms are present if…

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Q: Use the a. How many moles of sulfur atoms are present in a sample that contains 1.45 moles of…

A: To calculate moles from given moles, we need to use the mol to mol ratio for molecule to the…

Q: 1. How many MOLES of phosphorus pentachloride are present in 1.47 grams of this compound ? moles. 2.…

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Q: 5. What is the relationship between molar mass in grams per mole(g/mol)and average molecular mass in…

A: The mass of 1 molecule is known as molecular mass. The unit of molecular mass is amu i.e. atomic…

Q: A sample of N20 contains 1.10x1024 molecules. How many moles of N20 are present? mol Find the mass…

A: Molecules of N2O = 1.10×1024 Molar mass of N2O = 44g/mol  Avogadro number = 6.023×1023

Q: 5.Starting from 7.2 moles of Potassium Dichromate, How many ions of (Cr2O7)-2 are there? a) 5.06 x…

A: Given that, 7.2 moles of  Potassium Dichromate are peresent. To find: the number of ions of…

Q: Molar Mass and Moles 5. Calculate the molar mass of Fe3(PO4)2. 6. How many moles of silicon are in…

A: Moles = Mass/molar mass Mass = moles x molar mass Molar mass of a compound is equal to the sum of…

Q: omplete the folowing sentences. 1. How many hydrogen ions (H+) are in a mole? . 2. What is the mass…

A: Fill in the blanks

Q: How many moles (of molecules or formula units) are in each sample? Express your answer in moles to…

A: Given A) 29.2 g NO2 B) 1.35 kg CO2 C) 45.9 g KNO3 D) 164.5 kg Na2SO4 moles (of molecules or formula…

Q: 3. The possible 3 reactions for vinegar (aortic acil) and Sodium hydrogen carbonate (haking soda)…

A: We are given three reactions of vinegar/acetic acid reacting with baking soda/sodium hydrogen…

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: How many GRAMS of carbon are present in 4.07 moles of carbon tetrachloride, CCl4?  grams  How many…

A: Molar mass of C= 12 g/mol Molar mass of CCl4 = 153.82 g/mol Number of moles = mass ÷ molar mass

Q: Use the References to access important values if needed for this question. 1. How many ATOMS of…

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Q: a. How many grams of aluminum nitrite, Al(NO2)3, are present in 4.01 moles of this compound? grams…

A: a. Given: Moles of Al(NO2)3 = 4.01 Molar mass of Al(NO2)3  = 164.998 g/mol   Calculation for mass of…

Q: O 1.5 moles O 1.0 moles O 3.0 moles O 6.0 moles

A: From the formula,   2.0 moles Al contains 1 mol of Al2O3. (c) is correct option

Q: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: 1. How many moles of cobalt(III) sulfide, Co₂S3, are present in a sample that contains 4.11 moles of…

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Q: a. How many N2 molecules are contained in 2.55 mol of N2? N2 molecules b. How many N atoms are…

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Q: 2. What is the percent by mass of each element in the following compounds? Compound % By Mass(for…

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Q: Use the References to access important values if needed for 1. How many moles of C are there in a…

A: (1)1 mole of Carbon contains = 6.02×1023 atoms Then , number of moles present in  8.06×1021 atoms…

Q: a. How many moles of carbon tetrachloride are present in 3.10 x 1022 molecules of this compound?…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of one mole of molecules of a substance is called…

Q: How many moles of nitrogen atoms are present in a sample that contains 4.73 moles of dinitrogen…

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

Q: How many grams of sodium bicarbonate are in 4.5 moles of sodium bicarbonate (84.007 g/mole)? O 189.0…

A: Moles = mass/Molar mass

Q: 6. Dopamine (C§H11NO2) is a neurotransmitter, a substance that sends signals from one nerve to…

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Q: III. Molecular Formula 1. A hydrocarbon found in crude oil has an empirical formula of C,H, and an…

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Q: 1. How many MOLES of phosphorus pentachloride are present in 1.47 grams of this compound ? moles. 2.…

A: 1.)Given: The mass of PCl5 is 1.47 g. Introduction: The number of moles can be expressed as he ratio…

Q: For each reaction given, give the reaction type (RT), predict the products and write a complete,…

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

Q: Convert 32 grams of C2H,OH to moles.

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Q: 1. identify 4 different chemical compounds . A.) calculate the mole mass of each chemical compound…

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Q: 1. How many GRAMS of phosphorus are present in 1.59 moles of phosphorus trichloride ? grams. 2. How…

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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.