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Q: Stoichiometric coefficients describe the mole ratio. O True O False

A: Stoichiometric coefficients describe the mole ratio. We need to tell if this statement is true or…

Q: How many moles are in 1.05 x 1022 molecules of an unknown compound? Your Answer: Answer units

A: Here, we have to find the number of moles present in 1.05 × 1022 molecules of an unknown compound.

Q: A chemist needs 32.0 g of phenol, C6HsOH, for an experiment. How many moles of phenol is this? Save…

A: Given :- mass of phenol (C6H5OH) = 32.0 g  To calculate :- no.of moles of phenol and also determine…

Q: Part B Calculate the number of CO2 molecules in 1.19x102 mole of CO2. Express your answer using…

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Q: Which one of the following contains the most moles of hydrogen atoms? A) 5 mol of C₂H B) 10 mol…

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Q: How many grams of H2SO4 are present in 3.1*1027 formula units of H,SO4 ? Round your answer to 1…

A: 1mole  of H2SO4 contains 6.023×2023 formula units 1mole of H2SO4 --- 98grams

Q: Meaning of moles

A: ANSWER IS

Q: How many moles of nitrogen monoxide can be made from 10.18 moles of nitrogen dioxide? nitrogen…

A: Given, Moles of NO2=10.18 moles  Moles of NO= ?

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: Given 147.6 g of gold, Au, how many moles do you have? Round to 2 decimal places.

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Q: 2 SO2 + O2 -> 2 SO3 If you have 12.5 grams SO2 and 2.50 grams O2, then calculate the nunber of…

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Q: Avagadro's Number, indicating the number of particles in I mole of an eleme compound, or molecule,…

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Q: When ammonia is prepared from nitrogen gas and hydrogen gas, 22 grams of ammonia are actually…

A: This question is asking about the formula based problem of percent yield. If we recall the formula,…

Q: How many molecules of P205 are in 11.78 moles of P205 ? Answer to 2 decimal places. To enter number…

A: Applying avogadro concept of determination of number of molecules.

Q: How many moles of NaOH are in 2.2x10426 formula units of NaOH? )A ה docimal

A: Given :- number of formula units of NaOH = 2.2 × 1026 formula units  To be calculated :- number of…

Q: Compute: % of chlorine in potassium chloride. O a. 100% O b. 47% O c. 53%

A: The mass percentage of a component in a solution is calculated by using the formula: Mass…

Q: How many grams of LiHCO3 are present in 6.1*1024 formula units of LiHCO3? Round your answer to 1…

A: Given in the question, Compound = LiHCO3Formula unit = 6.1× 1024Avagadro no. = 6.023 × 1023No. of…

Q: Calculate the percent mass to 2 decimal places of each element in benzene C6H6. %C= %H=

A: Given that, compound= C6H6 molar mass= 78 g mol-1 then calculate, %C & %H = ?

Q: convert 248 mg of Pt to mol of Pt.

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Q: Compute: % of sodium in sodium oxide. O a. 74% O b. 60% O c. 59%

A: The chemical formula of sodium oxide is Na2O. The molar mass of sodium oxide is 62 g and 46 g of…

Q: Identify the number of atoms of each element in 1. molecule of Magnesium aluminate.

A: Please find the answer below.

Q: How many moles are there in 17.2 g of FeF 3 : Answer to 2 decimal places and include the unit .

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Q: Acetaminophen has the formula C8H9O2N Calculate the mass, in grams, of a .30 mole sample:…

A: Given data, No. of moles = 30 mol Molecular mass of acetaminophen = 151.163 g/mol To calculate the…

Q: How many moles of methanol (CH3OH) are in a 4.375 g sample? Your Answer: Answer units

A: 1- First we calculate the molar mass of Methanol :  Molar mass of C, H and O are 12, 1 and 16gmol-1…

Q: How many grams of H2SO4 are present in 9.4*1024 formula units of H2SO4 ? Round your answer to 1…

A: Given:- No of formula units of H2SO4 = 9.4 * 1024 Mass of H2SO4 present = ?

Q: of product from moles... Wine goes bad soon after opening because the ethanol (CH¸CH,OH) dissolved…

A: Ethanol reacts with water to form acetic acid and water. The equation for the balanced chemical…

Q: How do you determine what n is? I know it is number of moles but how do you find that specifically?

A: Redox reactions are the ones in which both oxidation, as well as reduction, takes place at same…

Q: Q8. In the combustion of 390 g of the molecule drawn below, how many grams of oxygen are consumed?…

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Q: None

A: To determine the empirical and molecular formulas of organic compounds and calculate their molar…

Q: How many grams of water are represented in 800 g of MgSO4*7H2O? MW of MgSO4*7H2O = 246 g/mole MW of…

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Q: You just finished a lab experiment. Theoretical yield of product is 8.3 g, actual (isolated yield)…

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Q: balance the equations below

A: Balance chemical reaction is the representation of reactant and product in such a way that the…

Q: What is the molar mass of (NH4)2 SO4 in g/mol? Round and report answer with 2 decimal places.

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Q: The ______________ is a collective unit that represents Avogadro’s number of particles.

A: we have to complete the given sentence using the appropriate term

Q: Calculate the moles of CH3COOH in vinegar (mol). Number answer only, do not write units. Do NOT…

A: vinegar has approx 5 percent acetic acid .

Q: Molar volume is the ratio of Da Actual volume to the number of moles Ob. Number of moles to the…

A: The definition of the molar volume is to be mentioned.

Q: This is part of a continuing problem from the previous carbohydrate sample. Use that data to…

A: Given, Mass of carbohydrate sample = 12.915 g Carbohydrate sample composed of CHO On combustion:…

Q: Which of the following is the correct unit for equivalent weight? a)eq/mol b)eq/g c)g/eq d)mol/eq

A: The unit for equivalent weight is given below.

Q: Calculate the percentage composition for PNCI2 - (Enter your answer to four significant figures.)…

A: Solution: The percentage composition for PNCl2 are as follows --- The molar mass of phosphorus (P) =…

Q: %. The percent by mass of bromine in PNBR2 is (Enter your answer to four significant figures.)

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Q: One mole of O, has a mass of 16.0 g. Select one: O True O False

A: According to mole concept, 1 mole of a substance is equal to its molar mass. Therefore, first of…

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

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Q: A 158 g sample of MnCl2-NH2O yields 122 g of the anhydrous compound after heating. Determine n in…

A: The reaction that takes place during heating is- MnCl2.nH2O→MnCl2 + nH2O   Thus, after heating all…

Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,)…

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Q: Mass (g) Moles Moles Mass (g) of A of A of B of B 1 mole Moles of B Molar mass of B Molar mass of A…

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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.